Question

1. what are adaptations?

a. small rodents that are the size of chipmunks and eat hay
b. behavior or physical characteristics that help animals survive
c. shoes that you need to wear when you visit a snowy place
d. a place with warm and damp weather all year around

1. hibernation slows down an animal’s body processes. according to the text, how does this affect its survival?

a. it helps its survival because they can run faster to find food.
b. it hurts its survival because they cannot escape other animals.
c. it helps its survival because they need very little food energy.
d. it hurts its survival because they stay in one place for months.

1. read the following sentences from the text.

\migration is not just for the birds. some mammals, including caribou and some kinds of bats, also migrate. in summer, these caribou feed and raise their young in northern alaska and canada. then they travel south, as far as 800 miles to forests that are somewhat protected from the arctic winter.\
what conclusion can you draw from this evidence?
a. the caribou hibernate after they migrate 800 miles to the forests because they are tired.
b. only young caribou migrate south for the winter because they do not have fur to stay warm.
c. winter in northern alaska and canada is colder than winter in the forests the caribou migrate to.
d. caribou and bats migrate south from northern alaska and canada to the same forests.

Explanation:

Question 1

To determine the correct answer, we analyze each option:

• Option A describes a type of rodent, not adaptations.
• Option B defines adaptations as behaviors or physical traits that aid animal survival, which matches the scientific definition.
• Option C refers to shoes, irrelevant to biological adaptations.
• Option D describes a climate, not adaptations.

Hibernation slows body processes. Let's analyze the options:

• Option A: Faster running is not related to hibernation's slowed processes.
• Option B: Hibernation helps survival, not hurt, so this is incorrect.
• Option C: Slowed processes mean less energy (food) is needed, which helps survival. This matches hibernation's purpose.
• Option D: Staying in one place during hibernation is a survival strategy (conserving energy), so it helps, not hurts.

Analyze the evidence about caribou migration:

• Option A: The text doesn't mention hibernation or tiredness from migration.
• Option B: The text says "these caribou" (not just young) migrate, and no info about fur.
• Option C: Caribou migrate south to forests "protected from the arctic winter", implying northern Alaska/Canada winters are colder than the forests they migrate to. This is supported.
• Option D: The text says some bats migrate but doesn't say they go to the same forests as caribou.

Answer:

B. behavior or physical characteristics that help animals survive

Question 2