Simulasi UTBK SBMPTN 5

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence, or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced by chemical combining in such a way that little or no measurable heat is produced.

Although bioluminescence is a relatively complex process, it can be produced to simple terms. Living light occur when luciferin and oxygen combine in the presence of luciferase. Fireflies require an additional compound called ATP.

Much remain unknown, but many scientists who study bioluminescence believe that the origin of the phenomenon goes back to a time when there was no oxygen in the earth’s atmosphere. When oxygen was gradually introduced into the atmosphere, it was poisonous to life forms.  Plants and animals produced light to use up the oxygen. Millions of years ago all life produced light to survive. As the millennia passed, life forms on earth became tolerant of, and finally dependent on oxygen, and the adaptation that  produced   bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or, attracting prey.

What is the whole text primarily concerned with?

• Luciferase

• Bioluminescence

• Cold and hot light

• The earth's atmosphere

• Primitive plants and animals

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence, or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced by chemical combining in such a way that little or no measurable heat is produced.

Although bioluminescence is a relatively complex process, it can be produced to simple terms. Living light occur when luciferin and oxygen combine in the presence of luciferase. Fireflies require an additional compound called ATP.

Much remain unknown, but many scientists who study bioluminescence believe that the origin of the phenomenon goes back to a time when there was no oxygen in the earth’s atmosphere. When oxygen was gradually introduced into the atmosphere, it was poisonous to life forms.  Plants and animals produced light to use up the oxygen. Millions of years ago all life produced light to survive. As the millennia passed, life forms on earth became tolerant of, and finally dependent on oxygen, and the adaptation that  produced   bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or, attracting prey.

In what way do bioluminescence and Incandescence are different?

• The former is produced by plants, the later is produced by animals

• The former is produced by animals, the later is produced by plants

• The former is no longer existing, while the later is.

• The former is cold, the later is hot

• The former is hot, the later is cold

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence, or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced by chemical combining in such a way that little or no measurable heat is produced.

Although bioluminescence is a relatively complex process, it can be produced to simple terms. Living light occur when luciferin and oxygen combine in the presence of luciferase. Fireflies require an additional compound called ATP.

Much remain unknown, but many scientists who study bioluminescence believe that the origin of the phenomenon goes back to a time when there was no oxygen in the earth’s atmosphere. When oxygen was gradually introduced into the atmosphere, it was poisonous to life forms.  Plants and animals produced light to use up the oxygen. Millions of years ago all life produced light to survive. As the millennia passed, life forms on earth became tolerant of, and finally dependent on oxygen, and the adaptation that  produced   bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or, attracting prey.

Which of the following statements is not true about bioluminescence?

• A form of cold light

• A poisonous substance

• A complex chemical process

• An adaptation of early plants and animals to the environment

• Light from living animal or plant.

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence, or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced by chemical combining in such a way that little or no measurable heat is produced.

Although bioluminescence is a relatively complex process, it can be produced to simple terms. Living light occur when luciferin and oxygen combine in the presence of luciferase. Fireflies require an additional compound called ATP.

Much remain unknown, but many scientists who study bioluminescence believe that the origin of the phenomenon goes back to a time when there was no oxygen in the earth’s atmosphere. When oxygen was gradually introduced into the atmosphere, it was poisonous to life forms.  Plants and animals produced light to use up the oxygen. Millions of years ago all life produced light to survive. As the millennia passed, life forms on earth became tolerant of, and finally dependent on oxygen, and the adaptation that  produced   bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or, attracting prey.

Bioluminescence in the modern plants and animals is no longer for the need of adaptation but ___.

• for survival

• for producing heat

• for burning excess oxygen

• for attracting prey and mating

• for being lantern in their environment

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence, or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced by chemical combining in such a way that little or no measurable heat is produced.

Although bioluminescence is a relatively complex process, it can be produced to simple terms. Living light occur when luciferin and oxygen combine in the presence of luciferase. Fireflies require an additional compound called ATP.

Much remain unknown, but many scientists who study bioluminescence believe that the origin of the phenomenon goes back to a time when there was no oxygen in the earth’s atmosphere. When oxygen was gradually introduced into the atmosphere, it was poisonous to life forms.  Plants and animals produced light to use up the oxygen. Millions of years ago all life produced light to survive. As the millennia passed, life forms on earth became tolerant of, and finally dependent on oxygen, and the adaptation that  produced   bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or, attracting prey.

The word 'distinguish' in the above passage can be replaced with ___.

• differ

• different

• differential

• differently

• differentiate

American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these bears have shiny black fur, but they grow brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same litter, both brown and black furred bears may be born.

Black bears are the smallest of all American bears, ranging in length from five to six feet, weighing from three hundred to five hundred pounds. Their eyes and ears are small and their eyesight and hearing are not as good as their sense of smell.

Like all bears, the black bear is timid, clumsy, and rarely dangerous, but if attacked, most can climb trees and cover ground at great speeds. When angry or frightened, it is a formidable enemy.

Black bears feed on leaves, herbs, roots, fruit, and berries, insect, fish, and even larger animals. One of the most interesting characteristics of bears, including the black bear, is their winter sleep. Unlike squirrels, woodchucks, and many other woodland animals, bears do not actually hibernate. Although the bear does not eat during the winter months, sustaining itself from body fat, its temperature remains almost normal, and it breathes regularly four or five times per minute.

Most black bears live alone, except during mating season. They prefer to live in caves, hollow logs, or dense thickets. A litter of one to four cubs is born in January or February after a gestation period of six to nine months, and they remain with their mother until they are fully grown or about one and half years old. Black bears can live as long as thirty years in the wild, and even longer in the game preserves set aside for them.

What is the whole text about?

• The color of bears

• The characteristic of black bears

• The habitat of black bears

• The similarity of black bears to other bears

• The origin of black bears

American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these bears have shiny black fur, but they grow brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same litter, both brown and black furred bears may be born.

Black bears are the smallest of all American bears, ranging in length from five to six feet, weighing from three hundred to five hundred pounds. Their eyes and ears are small and their eyesight and hearing are not as good as their sense of smell.

Like all bears, the black bear is timid, clumsy, and rarely dangerous, but if attacked, most can climb trees and cover ground at great speeds. When angry or frightened, it is a formidable enemy.

Black bears feed on leaves, herbs, roots, fruit, and berries, insect, fish, and even larger animals. One of the most interesting characteristics of bears, including the black bear, is their winter sleep. Unlike squirrels, woodchucks, and many other woodland animals, bears do not actually hibernate. Although the bear does not eat during the winter months, sustaining itself from body fat, its temperature remains almost normal, and it breathes regularly four or five times per minute.

Most black bears live alone, except during mating season. They prefer to live in caves, hollow logs, or dense thickets. A litter of one to four cubs is born in January or February after a gestation period of six to nine months, and they remain with their mother until they are fully grown or about one and half years old. Black bears can live as long as thirty years in the wild, and even longer in the game preserves set aside for them.

According to the author, which of the following senses is best in black bears?

• Sight

• Hearing

• Feeling

• Smell

• Taste

American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these bears have shiny black fur, but they grow brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same litter, both brown and black furred bears may be born.

Black bears are the smallest of all American bears, ranging in length from five to six feet, weighing from three hundred to five hundred pounds. Their eyes and ears are small and their eyesight and hearing are not as good as their sense of smell.

Like all bears, the black bear is timid, clumsy, and rarely dangerous, but if attacked, most can climb trees and cover ground at great speeds. When angry or frightened, it is a formidable enemy.

Black bears feed on leaves, herbs, roots, fruit, and berries, insect, fish, and even larger animals. One of the most interesting characteristics of bears, including the black bear, is their winter sleep. Unlike squirrels, woodchucks, and many other woodland animals, bears do not actually hibernate. Although the bear does not eat during the winter months, sustaining itself from body fat, its temperature remains almost normal, and it breathes regularly four or five times per minute.

Most black bears live alone, except during mating season. They prefer to live in caves, hollow logs, or dense thickets. A litter of one to four cubs is born in January or February after a gestation period of six to nine months, and they remain with their mother until they are fully grown or about one and half years old. Black bears can live as long as thirty years in the wild, and even longer in the game preserves set aside for them.

The black bear is described as all of the following, except ___.

• It is the smallest American bear

• It is born with brown, yellow, red, or black fur

• It is not actually dangerous

• It is like squirrels and other animals that hibernate

• According to their name, black bears always appear in black

The word 'formidable' in the text is closest in meaning to ___.

• reluctant

• intimidating

• harmless

• overestimated

• occasional

American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these bears have shiny black fur, but they grow brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same litter, both brown and black furred bears may be born.

Black bears are the smallest of all American bears, ranging in length from five to six feet, weighing from three hundred to five hundred pounds. Their eyes and ears are small and their eyesight and hearing are not as good as their sense of smell.

Like all bears, the black bear is timid, clumsy, and rarely dangerous, but if attacked, most can climb trees and cover ground at great speeds. When angry or frightened, it is a formidable enemy.

Black bears feed on leaves, herbs, roots, fruit, and berries, insect, fish, and even larger animals. One of the most interesting characteristics of bears, including the black bear, is their winter sleep. Unlike squirrels, woodchucks, and many other woodland animals, bears do not actually hibernate. Although the bear does not eat during the winter months, sustaining itself from body fat, its temperature remains almost normal, and it breathes regularly four or five times per minute.

Most black bears live alone, except during mating season. They prefer to live in caves, hollow logs, or dense thickets. A litter of one to four cubs is born in January or February after a gestation period of six to nine months, and they remain with their mother until they are fully grown or about one and half years old. Black bears can live as long as thirty years in the wild, and even longer in the game preserves set aside for them.

The paragraph following the passage most probably discusses ___.

• Black bears from different ranges

• The mating ritual of black bears

• Black bears in game preserves

• Natural enemies of black bears

• The life expectancy of black bears