Name – ______________________________
Homework – Amphibians
Due February 27th, 2019
SHORT ANSWER – Correctly answer each question.
1. The word amphibian means:
2. Fill in the blank: amphibians spend part of their lives in the _____________ and
part of their lives on ______________.
3. Amphibians are ectotherms. Define “ectotherm”.
4. Define “hibernation”.
5. Define “estivation”.
6. Fill in the blanks: amphibians exchange gases with lungs and through their
__________ and __________.
7. How many chambers do adult amphibian hearts have?
8. Fill in the blank: amphibians must have _______________________ to
reproduce.
9. What is the name of the process most amphibians use to reproduce?
10. Fill in the blank: most amphibians go through a developmental process called
_________________________.
11. Where are frog and toad tongues attached?
12. Fill in the blanks: amphibians include frogs, ___________________,
salamanders, and __________________.
13. Give two reasons amphibians are important.
a.
b.
14. Explain why amphibians good biological indicators.
15. Scientists think amphibians evolved from ________-_____________ fish.
16. Fill in the blank: _______________________ were the first vertebrates on Earth.
17. Amphibians most likely evolve on Earth ___________ million years ago (mya).