Multiple-Choice Quiz: Endotherms and Ectotherms

What is the normal body temperature for a human?

• 32 °C (89.6 °F)

• 40 °C (104 °F)

• 25 °C (77 °F)

• 37 °C (98.6 °F)

What does it mean to maintain something?

• To keep it stable and consistent

• To warm it up quickly

• To make it colder

• To change it often

Which of the following is an endotherm?

• Fish

• Insect

• Bird

• Snake

What is an ectotherm?

• An animal that always stays active

• An animal that uses stored energy to stay warm

• An animal that depends on the environment for warmth

• An animal that lives only in cold places

What happens to an ectotherm when the environment is too cold?

• It becomes inactive

• It sweats to cool down

• It grows thicker fur

• It heats itself using stored energy

Humans are ________, which are animals that use energy stored in their bodies to keep their body within a normal range.

• cold-blooded

• ectotherms

• endotherms

• exotherms

Snakes are ________, which depend on their environment to warm their bodies.

• endotherms

• ectotherms

• fish

• birds

Most fish, all reptiles, and ________ are ectotherms.

• mammals

• birds

• insects

• humans