How Animals Use Food

What is meant by the word metabolism?

• chemical processes that break down and build molecules in an organism

• using energy in the body to keep temperatures normal

• using the environment to keep body temperatures normal

• a chemical process in which an organism makes its own food

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Choose two correct answers that show us about endotherm.

• a robin and a rabbit

• a goldfish and a snake

• uses stored body energy to maintain body temperature

• uses the environment to maintain body temperature

Choose two correct answers that show us about ectotherm.

• a robin and a rabbit

• a goldfish and a snake

• uses stored body energy to maintain body temperature

• uses the environment to maintain body temperature

Pocket mice are small, nocturnal mammals. They are mainly herbivores that feed on the seeds of various grasses and shrubs. If food is very scarce, they will feed on insects. How does a pocket mouse typically get the energy it needs?

• It makes its own food using the energy of the sun.

• It eats small animals that it hunts.

• It feeds on the leaves of large trees.

• It feeds on seeds that plants make.

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How does the pocket mouse maintain its body temperature? Select the two that apply.

• It is an endotherm.

• It is an ectotherm.

• It uses energy stored in its body to stay warm.

• It uses energy from the environment to stay warm.

The metabolism of the pocket mouse is considered __________.

• very slow

• slow

• medium

• fast

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The best evidence for this is its _________.

• small appetite

• slow active breathing and heart rates

• high active heart rate and high active breathing rate

• changing body temperature and long life span

Animals need to have a constant supply of energy in order to survive. Decide if each process is an internal use of energy.

• locomotor movements

• an elephant's heart beating

• a rabbit jumping

• lung functioning

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Animals need to have a constant supply of energy in order to survive. Decide if each process is an external use of energy.

• locomotor movements

• an elephant's heart beating

• a rabbit jumping

• lung functioning

Tags

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