The video explains ectotherms, animals that rely on external heat sources to regulate body temperature. It covers how they exchange heat with the environment, their lack of hair or feathers, and behavioral adaptations like seeking warmth for digestion or hibernating in cold. The video contrasts ectotherms with endotherms, which generate their own heat.

Which of the following animals is typically ectothermic?

• Dog

• Frog

• Bird

• Elephant

How do marine iguanas adapt to cold seawater for digestion?

• They find warmer locations.

• They generate internal heat.

• They hibernate.

• They eat only in the sun.

What is the process called when heat is transferred through direct contact with a warm surface?

• Radiation

• Convection

• Conduction

• Evaporation

What behavior might a snake exhibit to avoid overheating?

• Climbing trees

• Basking in the sun

• Finding shade or burrows

• Swimming in water

What is a key difference between ectotherms and endotherms?

• Endotherms produce internal heat.

• Ectotherms generate their own heat.

• Endotherms rely on external heat.

• Ectotherms have feathers.