Evolution

Camels, llamas and alpacas all have two toes, no hooves, and a split upper lip. These anatomical similarities suggest-

• They live in the same ecosystem

• They slowly evolved to become herbivores

• They have a common ancestor

• They exchanged DNA in the past

Tags

NGSS.MS-LS4-2

In 2010 scientists discovered a fossil of a new cat species. This provided evidence that big cats and small wild cats split 6 million years ago. Which resources did the scientists use to make this hypothesis?

• A food web showing feeding relationships where the skull was found

• Population and migration data for small cats living in the ecosystem

• The fossil record and DNA comparisons of big and small cats

• The historical record of interactions among big cat species

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which statement is true about this diagram?

• The raccoon is more closely related to the dog than the lesser panda

• The sun bear and brown bear are not closely related

• The great panda doesn't share a common ancestor with spectacled bears

• Lesser pandas and dogs share a common ancestor

Tags

NGSS.MS-LS4-2

Genome maps provide the DNA sequences of chromosomes. Some scientists have compared the genome maps of a hedgehog and a sloth. What do these genome maps allow the scientists to determine?

• The color patterns of the offspring of each species

• How much the size ranges of the two species differ

• The methods of protein synthesis that each species uses

• How closely related the two species are to each other

Tags

NGSS.MS-LS4-2

These limbs provide evidence of common ancestry because they-

• have the same basic structure

• perform the same function

• are the same size

• are parts of mammals

Tags

NGSS.MS-LS4-2

After examining the fossil record, scientists have determined that scorpions today are much smaller than their extinct ancestors. Which of the following conclusions is supported by this information?

• Scorpions living today have increased since they first appeared.

• Scorpions in the fossil record are smaller than their descendants are.

• Scorpions have changed as a result of natural selection.

• Scorpions do not appear in their original state in the fossil record.

Tags

NGSS.MS-LS4-1

Which condition is essential for natural selection to result in a new species?

• Unlimited resources

• An inherited variation

• A static environment

• A long life span

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

NGSS.HS-LS4-5

What will happen to the beetles over time?

• The green beetles will become poisonous

• The green beetles will interbreed with the orange

• The ravens will start eating both colors

• The green beetles will be eaten, and orange beetles will increase

Tags

NGSS.MS-LS2-4

Humans almost hunted American bison to extinction. Now there are only brown bison left. This is an example of-

• Genetic flow

• Genetic drift

• Mutation

• Recombination

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

Some people are resistant to diseases. Their resistance is due to-

• Vaccines only

• Individuals' genetic composition

• Antibiotics only

• Individuals' behavior in avoiding diseases

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4