Pertanyaan

 

Pertanyaan

Sampaikan pertanyaan menganai kesulitan belajarmu kepada tim narasumber yang kompeten. Kamu harus login JSS terlebih dahulu untuk mengajukan pertanyaan, klik di sini untuk login JSS

 
8 September 2008
sidiq
IPA Kelas 7

kak bdanya velocity ama speed apa..?

Halo dik, ada perbedaan antara velocity dan speed. Sebelumnya kita harus mengenal jarak dan perpindahan. Jarak adalah panjang lintasan yang ditempuh sedang perpindahan merupakan perubahan posisi suatu benda selama bergerak.

Velocity merupakan hasil bagi antara perpindahan terhadap waktu. Bahasa Indonesianya kecepatan. Speed adalah laju yang merupakan hasil bagi antara jarak terhadap waktu. 

Jadi kelajuan atau laju (speed) tidak memperhatikan arah geraknya hanya memperhatikan besarnya.

Contoh : sepeda motor itu bergerak dengan laju 40 km/jam. 

Kecepatan (velocity) memperhatikan besar dan arah geraknya. 

Contoh    : sepeda motor itu bergerak dengan kecepatan 40 km/jam ke arah Timur. 

Begitu? Semoga jelas yah.... 


HERMAN MURSITO

8 September 2008
agger
Bahasa Inggris Kelas 11

Tolong bantu ak bikin cerita narrative text beserta strukturnya donk plz

dear agger,

Silahkan anda download. Thanks

lampiran

Operator

8 September 2008
rpl
Matematika Kelas 9

Tanya ttg Pers Grs Lurs Grs K memotong sb.y pd y=25 dan grs K tegak lurus dgn grs L di titik A. Titik A terletak pd grafik fungsi y= -4/5 x2 + 16x -60 dan pada ordinat=20. Tentukan persamaan grs K dan L

Pertanyaan anda materi SMA. Lihat di Web matematika untuk SMA di daftar menu. Mksh
Operator


7 September 2008
Sita
Matematika Kelas 9

Sebuah tempat air berbentuk kerucut dibuat dari seng juring lingkaran dengan jari2 20 cm dan sudut pusatnya 216 drjd. Berapa liter dapat ditampung ?

Jari-jari juring lingkaran akan menjadi garis pelukis kerucut yang terjadi.

Luas selimut kerucut = luas juring

 ∏r(krgt) s     = (216/360)∏[r(jrng)]2

 ∏ r 20  = (3/5) ∏ x 20x 20

    r(krct) = (3/5) x 20

      r(krct) = 15

Jadi jari-jari kerucut yang terjadi 15 cm.

Tinggi kerucut = akar dari (202 - 152)

                     = akar dari (400 -225)

                     = akar dari (175)

                     = 5√7

Volume kerucut = (1/3) ∏r2t

                       = (1/3) 3,14 15 x 15 x 5√7

                       = 1177,5√7

Jadi volume kerucut yang terjadi 1177,5√7 cm3 = 1,1775√7 liter
 

 


Drs. Sudarsono, M.Ed

7 September 2008
eko
Matematika Kelas 9

Sebuah bola berada dalam tabung. Jika diameter tabung = tinggi tabung = diameter bola, dan volum bola = 300 cm kubik , berapa volum bola diluar tabung ?

Volume bola = (4/3) π r3

Berarti  (4/3) π r= 300

                   π r3  = 300 : (4/3)

                   π r3  = 300 x 3/4

                   π r3  = 900/4 = 225
 

 diameter tabung = tinggi tabung, berarti

  2r =  t 

Volume tabung =  π r2. 2r

                      = 2 π r3

 karena π r3 =225

berarti volume tabung = 2 x 225 = 450 cm3 

volume udara diluar tabung = volume tabung - volume bola

= 450 cm3 - 300 cm= 150 cm3

 Jadi volume diluar tabung = 150 cm3


Drs. Sudarsono, M.Ed

7 September 2008
wik
Bahasa Inggris Kelas 9

mb tlong buatin teks report sbnyak 3 sekarang yamb

TEXT I RHINOCEROSES Rhinoceroses are wild animals which live in the forest.  They have large heavy bodies. Their skins are very thick. They have horns on their noses. Their weight can be more than 2.250 kilograms for each.Rhinoceroses eat grass. They have so good muscle structures that they can run and change directions very fast. They can sprint at 56 km an hour. Rhinoceros have been reported to enter campsites at night, they scatter smoldering logs of fire, and then peacefully walk away. Rhinoceroses don’t have very good eyesight for distance. The oxpeckers always accompany them. They give them warning system.

Rhinoceroses are hunted for their horns. They are used to make traditional medicine. The rhinos are listed as endangered on the Red List of Threatened species.

 TEXT 2Fax Machine

Fax, the short term for facsimile is a telecommunications technology used to transfer copies (facsimiles) of documents, especially using affordable devices operating over the telephone network. The word telefax, short for telefacsimile, for "make a copy at a distance", is also used as a synonym. The device is also known as a telecopier in certain industries. When sending documents to people at large distances, faxes have a distinct advantage over postal mail in that the delivery is nearly instantenous, yet its disadvantages in quality and its proprietary format have relegated it to a position beneath email as the prevailing form of electronic document tranferral.

 

TEXT 3DogsThe dog (Canis lupus familiaris)[2] is a domesticated subspecies of the wolf, a mammal of the Canidae family of the order Carnivora. The term encompasses both feral and pet varieties and is also sometimes used to describe wild canids of other subspecies or species. The domestic dog has been one of the most widely kept working and companion animals in human history, as well as being a food source in some cultures. There are estimated to be 400 million dogs in the world.[3]The dog has developed into hundreds of varied breeds. Height measured to the withers ranges from a few inches in the Chihuahua to a few feet in the Irish Wolfhound; color varies from white through grays (usually called blue) to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; and, coats can be very short to many centimeters long, from coarse hair to something akin to wool, straight or curly, or smooth.[Dogs are very social animals, but their personality and behavior vary with breed as well as how they are treated by their owners and others who come in contact with them. It is not uncommon for dogs to attack humans and other animals; however, this is usually because of lack of care or improper upbringing by its owner.Dogs are valued for their intelligence. This intelligence is expressed differently with different breeds and individuals, however. For example, Border Collies are noted for their ability to learn commands, while other breeds may not be so motivated towards obedience, but instead show their cleverness in devising ways to steal food or escape from a yard. Being highly adaptable animals themselves, dogs have learned to do many jobs as required by humans over the generations. Dogs are employed in various roles across the globe, proving invaluable assets in areas such as search-and-rescue; law enforcement (including attack dogs, sniffer dogs and tracking dogs); guards for livestock, people or property; herding; Arctic exploration sled-pullers; guiding the blind and acting as a pair of ears for the deaf; assisting with hunting, and a great many other roles which they may be trained to assume. Most dogs rarely have to deal with complex tasks and are unlikely to learn relatively complicated activities (such as opening doors) unaided. Some dogs (such as guide dogs for the visually impaired) are specially trained to recognize and avoid dangerous situations.       
Operator

7 September 2008
yoki
Bahasa Inggris Kelas 9

mb tlong buatin teks report tentang animal 5 buah y......... skrana y mb

TEXT 1RHINOCEROSES Rhinoceroses are wild animals which live in the forest.  They have large heavy bodies. Their skins are very thick. They have horns on their noses. Their weight can be more than 2.250 kilograms for each.Rhinoceroses eat grass. They have so good muscle structures that they can run and change directions very fast. They can sprint at 56 km an hour. Rhinoceros have been reported to enter campsites at night, they scatter smoldering logs of fire, and then peacefully walk away. Rhinoceroses don’t have very good eyesight for distance. The oxpeckers always accompany them. They give them warning system. Rhinoceroses are hunted for their horns. They are used to make traditional medicine. The rhinos are listed as endangered on the Red List of Threatened species.TEXT 2DogsThe dog (Canis lupus familiaris)[2] is a domesticated subspecies of the wolf, a mammal of the Canidae family of the order Carnivora. The term encompasses both feral and pet varieties and is also sometimes used to describe wild canids of other subspecies or species. The domestic dog has been one of the most widely kept working and companion animals in human history, as well as being a food source in some cultures. There are estimated to be 400 million dogs in the world.[3]The dog has developed into hundreds of varied breeds. Height measured to the withers ranges from a few inches in the Chihuahua to a few feet in the Irish Wolfhound; color varies from white through grays (usually called blue) to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; and, coats can be very short to many centimeters long, from coarse hair to something akin to wool, straight or curly, or smooth.[Dogs are very social animals, but their personality and behavior vary with breed as well as how they are treated by their owners and others who come in contact with them. It is not uncommon for dogs to attack humans and other animals; however, this is usually because of lack of care or improper upbringing by its owner.Dogs are valued for their intelligence. This intelligence is expressed differently with different breeds and individuals, however. For example, Border Collies are noted for their ability to learn commands, while other breeds may not be so motivated towards obedience, but instead show their cleverness in devising ways to steal food or escape from a yard. Being highly adaptable animals themselves, dogs have learned to do many jobs as required by humans over the generations. Dogs are employed in various roles across the globe, proving invaluable assets in areas such as search-and-rescue; law enforcement (including attack dogs, sniffer dogs and tracking dogs); guards for livestock, people or property; herding; Arctic exploration sled-pullers; guiding the blind and acting as a pair of ears for the deaf; assisting with hunting, and a great many other roles which they may be trained to assume. Most dogs rarely have to deal with complex tasks and are unlikely to learn relatively complicated activities (such as opening doors) unaided. Some dogs (such as guide dogs for the visually impaired) are specially trained to recognize and avoid dangerous situations.TEXT 3Peacocks The tiger (Panthera tigris) is a member of the Felidae family; the largest and the most powerful of the four "big cats" in the genus Panthera.[4] Native to much of eastern and southern Asia, the tiger is an apex predator and an obligate carnivore. Reaching up to 4 metres (13 ft) in total length and weighing up to 300 kilograms (660 pounds), the larger tiger subspecies are comparable in size to the biggest extinct felids.[5][6] Aside from their great bulk and power, their most recognizable feature is the pattern of dark vertical stripes that overlays near-white to reddish-orange fur, with lighter underparts. The largest subspecies of tiger is the Siberian tiger.Highly adaptable, tigers range from the Siberian taiga, to open grasslands, to tropical mangrove swamps. They are territorial and generally solitary animals, often requiring large contiguous areas of habitat that support their prey demands. This, coupled with the fact that they are endemic to some of the more densely populated places on earth, has caused significant conflicts with humans. Of the nine subspecies of modern tiger, three are extinct and the remaining six are classified as endangered, some critically so. The primary direct causes are habitat destruction and fragmentation, and hunting. Their historical range, which once reached from Mesopotamia and the Caucasus through most of South and East Asia, has been radically reduced. While all surviving species are under formal protection, poaching, habitat destruction and inbreeding depression continue to be threats.Nonetheless, tigers are among the most recognizable and popular of the world's charismatic megafauna. They have featured prominently in ancient mythology and folklore, and continue to be depicted in modern films and literature. Tigers appear on many flags and coats of arms, as mascots for sporting teams, and as the national animal of several Asian nations.Today, tigers are perhaps the most recognisable of all the cats (with the possible exception of the lion). They typically have rusty-reddish to brown-rusty coats, a whitish medial and ventral area, a white "fringe" that surrounds the face, and stripes that vary from brown or gray to pure black. The form and density of stripes differs between subspecies (as well as the ground coloration of the fur; for instance, Siberian tigers are usually paler than other tiger subspecies), but most tigers have over 100 stripes. The pattern of stripes is unique to each animal, and thus could potentially be used to identify individuals, much in the same way as fingerprints are used to identify people. This is not, however, a preferred method of identification, due to the difficulty of recording the stripe pattern of a wild tiger. It seems likely that the function of stripes is camouflage, serving to help tigers conceal themselves amongst the dappled shadows and long grass of their environment as they stalk their prey. The stripe pattern is found on a tiger's skin and if shaved, its distinctive camouflage pattern would be preserved. Like other big cats, tigers have a white spot on the backs of their ears.Tigers have the additional distinction of being the heaviest cats found in the wild[13]. However, the subspecies differ markedly in size, tending to increase proportionally with latitude, as predicted by Bergmann's Rule. Thus, large male Siberian Tigers (Panthera tigris altaica) can reach a total length of 3.5 m and a weight of 306 kilograms, which is considerably larger than the sizes reached by island-dwelling tigers such as the Sumatran, the smallest living subspecies with an body weight of only 75-140 kg Tigresses are smaller than the males in each subspecies, although the size difference between male and female tigers tends to be more pronounced in the larger subspecies of tiger, with males weighing up to 1.7 times as much as the females. In addition, male tigers have wider forepaw pads than females. This difference is often used by biologists in determining the gender of tigers when observing their tracks. Text 4CatsThe cat (Felis catus), also known as the domestic cat or house cat to distinguish it from other felines, is a small predatory carnivorous species of crepuscular mammal that is valued by humans for its companionship and its ability to hunt vermin, snakes and scorpions. It has been associated with humans for at least 9,500 years. A skilled predator, the cat is known to hunt over 1,000 species for food. It can be trained to obey simple commands. Individual cats have also been known to learn on their own to manipulate simple mechanisms, such as doorknobs. Cats use a variety of vocalizations and types of body language for communication, including meowing, purring, hissing, growling, squeaking, chirping, clicking, and grunting.[6] With 69 million of them present in American homes,[7] cats are the most or the second most popular pets in that country. Cats also may be the most popular pet in the world, with over 600 million in homes all over the world.[8] They are also bred and shown as registered pedigree pets. This hobby is known as the "Cat Fancy".Cats typically weigh between 2.5 and 7 kg (5.5–16 pounds); however, some breeds, such as the Maine Coon, can exceed 11.3 kilograms (24.9 lb). Some have been known to reach up to 23 kilograms (51 lb) due to overfeeding. Conversely, very small cats (less than 1.8 kilograms (4.0 lb)) have been reported. The largest cat ever was officially reported to have weighed in at about 21.297 kilograms (46.952 lb) (46 lb 15.25 oz). Cat senses are attuned for hunting. Cats have highly advanced hearing, eyesight, taste, and touch receptors, making the cat extremely sensitive among mammals. Cats' night vision is superior to humans although their vision in daylight is inferior. Humans and cats have a similar range of hearing on the low end of the scale, but cats can hear much higher-pitched sounds, up to 64 kHz, which is 1.6 octaves above the range of a human, and even one octave above the range of a dog. A domestic cat's sense of smell is about fourteen times as strong as a human's. To aid with navigation and sensation, cats have dozens of movable vibrissae (whiskers) over their body, especially their face. Due to a mutation in an early cat ancestor, one of two genes necessary to taste sweetness may have been lost by the cat family.Text 5 KoalaThe Koala (Phascolarctos cinereus) is a thickset arboreal marsupial herbivore native to Australia, and the only extant representative of the family Phascolarctidae.The Koala is found in coastal regions of eastern and southern Australia, from near Adelaide to the southern part of Cape York Peninsula. Populations also extend for considerable distances inland in regions with enough moisture to support suitable woodlands. The Koalas of South Australia were largely exterminated during the early part of the 20th century, but the state has since been repopulated with Victorian stock. The Koala is not found in Tasmania or Western Australia.The Koala is broadly similar in appearance to the wombat (their closest living relatives[1]), but has a thicker coat, much larger ears and longer limbs. The Koala has large, sharp claws to assist with climbing tree trunks. Weight varies from about 14 kg (31 lb) for a large southern male, to about 5 kg (11 lb) for a small northern female. The Koala's five fingers are arranged with opposable thumbs, providing better gripping ability. The first two fingers are positioned in apposition on the front paws, and the first three fingers for the hind paws. The Koala is one of the few mammals (other than primates) that has fingerprints. Koala fingerprints are similar to human fingerprints; even with an electron microscope, it can be quite difficult to distinguish between the two. The teeth of the Koala are adapted to their herbivorous diet, and are similar to those of other diprotodont marsupials, such as kangaroos and wombats. They have sharp incisors to clip leaves at the front of the mouth, separated from the grinding cheek teeth by a wide diastema. The dental formula for koalas is:

Dentition
3.1.1.4
1.0.1.4
The male Koala, like many marsupials, has a bifurcated penis. The female has two lateral vaginae, a feature unique to the Koala, and it has two separate uteri which is common to all marsupials. The brain in the ancestors of the modern Koala once filled the whole cranial cavity, but has become drastically reduced in the present species, a degeneration scientists suspects is an adaptation to a diet low in energy[1]. One of the smallest in marsupials with no more than 0.2% of its body weight[2], about 40% of the cranial cavity is filled with cerebrospinal fluid, while the brain's two cerebral hemispheres are like "a pair of shrivelled walnut halves on top of the brain stem, in contact neither with each other nor the bones of the skull. It is the only animal on Earth with such a strangely reduced brain." It is generally a silent animal, but males have a very loud advertising call that can be heard from almost a kilometre away during the breeding season. When under stress, Koalas may issue a loud cry, which has been reported as similar to that of a human baby. There is little reliable information about the lifespan of the Koala, but in captivity they have been observed to reach the age of 18 years.   

 


Operator

7 September 2008
yoki
Bahasa Inggris Kelas 9

mb tlong buatin teks report tentang animal 5 buah y......... skrana y mb

TEXT 1RHINOCEROSES Rhinoceroses are wild animals which live in the forest.  They have large heavy bodies. Their skins are very thick. They have horns on their noses. Their weight can be more than 2.250 kilograms for each.Rhinoceroses eat grass. They have so good muscle structures that they can run and change directions very fast. They can sprint at 56 km an hour. Rhinoceros have been reported to enter campsites at night, they scatter smoldering logs of fire, and then peacefully walk away. Rhinoceroses don’t have very good eyesight for distance. The oxpeckers always accompany them. They give them warning system. Rhinoceroses are hunted for their horns. They are used to make traditional medicine. The rhinos are listed as endangered on the Red List of Threatened species.TEXT 2DogsThe dog (Canis lupus familiaris)[2] is a domesticated subspecies of the wolf, a mammal of the Canidae family of the order Carnivora. The term encompasses both feral and pet varieties and is also sometimes used to describe wild canids of other subspecies or species. The domestic dog has been one of the most widely kept working and companion animals in human history, as well as being a food source in some cultures. There are estimated to be 400 million dogs in the world.[3]The dog has developed into hundreds of varied breeds. Height measured to the withers ranges from a few inches in the Chihuahua to a few feet in the Irish Wolfhound; color varies from white through grays (usually called blue) to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; and, coats can be very short to many centimeters long, from coarse hair to something akin to wool, straight or curly, or smooth.[Dogs are very social animals, but their personality and behavior vary with breed as well as how they are treated by their owners and others who come in contact with them. It is not uncommon for dogs to attack humans and other animals; however, this is usually because of lack of care or improper upbringing by its owner.Dogs are valued for their intelligence. This intelligence is expressed differently with different breeds and individuals, however. For example, Border Collies are noted for their ability to learn commands, while other breeds may not be so motivated towards obedience, but instead show their cleverness in devising ways to steal food or escape from a yard. Being highly adaptable animals themselves, dogs have learned to do many jobs as required by humans over the generations. Dogs are employed in various roles across the globe, proving invaluable assets in areas such as search-and-rescue; law enforcement (including attack dogs, sniffer dogs and tracking dogs); guards for livestock, people or property; herding; Arctic exploration sled-pullers; guiding the blind and acting as a pair of ears for the deaf; assisting with hunting, and a great many other roles which they may be trained to assume. Most dogs rarely have to deal with complex tasks and are unlikely to learn relatively complicated activities (such as opening doors) unaided. Some dogs (such as guide dogs for the visually impaired) are specially trained to recognize and avoid dangerous situations.TEXT 3Peacocks The tiger (Panthera tigris) is a member of the Felidae family; the largest and the most powerful of the four "big cats" in the genus Panthera.[4] Native to much of eastern and southern Asia, the tiger is an apex predator and an obligate carnivore. Reaching up to 4 metres (13 ft) in total length and weighing up to 300 kilograms (660 pounds), the larger tiger subspecies are comparable in size to the biggest extinct felids.[5][6] Aside from their great bulk and power, their most recognizable feature is the pattern of dark vertical stripes that overlays near-white to reddish-orange fur, with lighter underparts. The largest subspecies of tiger is the Siberian tiger.Highly adaptable, tigers range from the Siberian taiga, to open grasslands, to tropical mangrove swamps. They are territorial and generally solitary animals, often requiring large contiguous areas of habitat that support their prey demands. This, coupled with the fact that they are endemic to some of the more densely populated places on earth, has caused significant conflicts with humans. Of the nine subspecies of modern tiger, three are extinct and the remaining six are classified as endangered, some critically so. The primary direct causes are habitat destruction and fragmentation, and hunting. Their historical range, which once reached from Mesopotamia and the Caucasus through most of South and East Asia, has been radically reduced. While all surviving species are under formal protection, poaching, habitat destruction and inbreeding depression continue to be threats.Nonetheless, tigers are among the most recognizable and popular of the world's charismatic megafauna. They have featured prominently in ancient mythology and folklore, and continue to be depicted in modern films and literature. Tigers appear on many flags and coats of arms, as mascots for sporting teams, and as the national animal of several Asian nations.Today, tigers are perhaps the most recognisable of all the cats (with the possible exception of the lion). They typically have rusty-reddish to brown-rusty coats, a whitish medial and ventral area, a white "fringe" that surrounds the face, and stripes that vary from brown or gray to pure black. The form and density of stripes differs between subspecies (as well as the ground coloration of the fur; for instance, Siberian tigers are usually paler than other tiger subspecies), but most tigers have over 100 stripes. The pattern of stripes is unique to each animal, and thus could potentially be used to identify individuals, much in the same way as fingerprints are used to identify people. This is not, however, a preferred method of identification, due to the difficulty of recording the stripe pattern of a wild tiger. It seems likely that the function of stripes is camouflage, serving to help tigers conceal themselves amongst the dappled shadows and long grass of their environment as they stalk their prey. The stripe pattern is found on a tiger's skin and if shaved, its distinctive camouflage pattern would be preserved. Like other big cats, tigers have a white spot on the backs of their ears.Tigers have the additional distinction of being the heaviest cats found in the wild[13]. However, the subspecies differ markedly in size, tending to increase proportionally with latitude, as predicted by Bergmann's Rule. Thus, large male Siberian Tigers (Panthera tigris altaica) can reach a total length of 3.5 m and a weight of 306 kilograms, which is considerably larger than the sizes reached by island-dwelling tigers such as the Sumatran, the smallest living subspecies with an body weight of only 75-140 kg Tigresses are smaller than the males in each subspecies, although the size difference between male and female tigers tends to be more pronounced in the larger subspecies of tiger, with males weighing up to 1.7 times as much as the females. In addition, male tigers have wider forepaw pads than females. This difference is often used by biologists in determining the gender of tigers when observing their tracks. Text 4CatsThe cat (Felis catus), also known as the domestic cat or house cat to distinguish it from other felines, is a small predatory carnivorous species of crepuscular mammal that is valued by humans for its companionship and its ability to hunt vermin, snakes and scorpions. It has been associated with humans for at least 9,500 years. A skilled predator, the cat is known to hunt over 1,000 species for food. It can be trained to obey simple commands. Individual cats have also been known to learn on their own to manipulate simple mechanisms, such as doorknobs. Cats use a variety of vocalizations and types of body language for communication, including meowing, purring, hissing, growling, squeaking, chirping, clicking, and grunting.[6] With 69 million of them present in American homes,[7] cats are the most or the second most popular pets in that country. Cats also may be the most popular pet in the world, with over 600 million in homes all over the world.[8] They are also bred and shown as registered pedigree pets. This hobby is known as the "Cat Fancy".Cats typically weigh between 2.5 and 7 kg (5.5–16 pounds); however, some breeds, such as the Maine Coon, can exceed 11.3 kilograms (24.9 lb). Some have been known to reach up to 23 kilograms (51 lb) due to overfeeding. Conversely, very small cats (less than 1.8 kilograms (4.0 lb)) have been reported. The largest cat ever was officially reported to have weighed in at about 21.297 kilograms (46.952 lb) (46 lb 15.25 oz). Cat senses are attuned for hunting. Cats have highly advanced hearing, eyesight, taste, and touch receptors, making the cat extremely sensitive among mammals. Cats' night vision is superior to humans although their vision in daylight is inferior. Humans and cats have a similar range of hearing on the low end of the scale, but cats can hear much higher-pitched sounds, up to 64 kHz, which is 1.6 octaves above the range of a human, and even one octave above the range of a dog. A domestic cat's sense of smell is about fourteen times as strong as a human's. To aid with navigation and sensation, cats have dozens of movable vibrissae (whiskers) over their body, especially their face. Due to a mutation in an early cat ancestor, one of two genes necessary to taste sweetness may have been lost by the cat family.Text 5 KoalaThe Koala (Phascolarctos cinereus) is a thickset arboreal marsupial herbivore native to Australia, and the only extant representative of the family Phascolarctidae.The Koala is found in coastal regions of eastern and southern Australia, from near Adelaide to the southern part of Cape York Peninsula. Populations also extend for considerable distances inland in regions with enough moisture to support suitable woodlands. The Koalas of South Australia were largely exterminated during the early part of the 20th century, but the state has since been repopulated with Victorian stock. The Koala is not found in Tasmania or Western Australia.The Koala is broadly similar in appearance to the wombat (their closest living relatives[1]), but has a thicker coat, much larger ears and longer limbs. The Koala has large, sharp claws to assist with climbing tree trunks. Weight varies from about 14 kg (31 lb) for a large southern male, to about 5 kg (11 lb) for a small northern female. The Koala's five fingers are arranged with opposable thumbs, providing better gripping ability. The first two fingers are positioned in apposition on the front paws, and the first three fingers for the hind paws. The Koala is one of the few mammals (other than primates) that has fingerprints. Koala fingerprints are similar to human fingerprints; even with an electron microscope, it can be quite difficult to distinguish between the two. The teeth of the Koala are adapted to their herbivorous diet, and are similar to those of other diprotodont marsupials, such as kangaroos and wombats. They have sharp incisors to clip leaves at the front of the mouth, separated from the grinding cheek teeth by a wide diastema. The dental formula for koalas is:

Dentition
3.1.1.4
1.0.1.4
The male Koala, like many marsupials, has a bifurcated penis. The female has two lateral vaginae, a feature unique to the Koala, and it has two separate uteri which is common to all marsupials. The brain in the ancestors of the modern Koala once filled the whole cranial cavity, but has become drastically reduced in the present species, a degeneration scientists suspects is an adaptation to a diet low in energy[1]. One of the smallest in marsupials with no more than 0.2% of its body weight[2], about 40% of the cranial cavity is filled with cerebrospinal fluid, while the brain's two cerebral hemispheres are like "a pair of shrivelled walnut halves on top of the brain stem, in contact neither with each other nor the bones of the skull. It is the only animal on Earth with such a strangely reduced brain." It is generally a silent animal, but males have a very loud advertising call that can be heard from almost a kilometre away during the breeding season. When under stress, Koalas may issue a loud cry, which has been reported as similar to that of a human baby. There is little reliable information about the lifespan of the Koala, but in captivity they have been observed to reach the age of 18 years.   
Operator

7 September 2008
yonas
Bahasa Inggris Kelas 9

mbak tolon buatin teks report

REPORT 

Report Tujuan Komunikatif: Menyampaikan informasi tentang sesuatu, apa adanya, sebagai hasil pengamatan sistematis atau analisis. Yang dideskripsikan dapat meliputi gajala alam, lingkungan, benda buatan manusia, atau gejala- gejala sosial. Deskripsi sebuah teks report dapat berupa simpulan umum misalnya tentang rumah sederhana dengan mendekripsikan ciri-ciri subyek tersebut sehingga layak dikategorikan rumah sederhana, dsb.

Contoh:

Fax MachineFax, the short term for facsimile is a telecommunications technology used to transfer copies (facsimiles) of documents, especially using affordable devices operating over the telephone network. The word telefax, short for telefacsimile, for "make a copy at a distance", is also used as a synonym. The device is also known as a telecopier in certain industries. When sending documents to people at large distances, faxes have a distinct advantage over postal mail in that the delivery is nearly instantenous, yet its disadvantages in quality and its proprietary format have relegated it to a position beneath email as the prevailing form of electronic document tranferral.
Operator

7 September 2008
yonas
Bahasa Inggris Kelas 9

mbak tolon buatin teks report

REPORT 

Report Tujuan Komunikatif: Menyampaikan informasi tentang sesuatu, apa adanya, sebagai hasil pengamatan sistematis atau analisis. Yang dideskripsikan dapat meliputi gajala alam, lingkungan, benda buatan manusia, atau gejala- gejala sosial. Deskripsi sebuah teks report dapat berupa simpulan umum misalnya tentang rumah sederhana dengan mendekripsikan ciri-ciri subyek tersebut sehingga layak dikategorikan rumah sederhana, dsb.

Contoh:

Fax MachineFax, the short term for facsimile is a telecommunications technology used to transfer copies (facsimiles) of documents, especially using affordable devices operating over the telephone network. The word telefax, short for telefacsimile, for "make a copy at a distance", is also used as a synonym. The device is also known as a telecopier in certain industries. When sending documents to people at large distances, faxes have a distinct advantage over postal mail in that the delivery is nearly instantenous, yet its disadvantages in quality and its proprietary format have relegated it to a position beneath email as the prevailing form of electronic document tranferral.
Operator

 

Ajukan Pertanyaan