Name_________________________________________Date__________________Period________
Alternative to Frog Dissection
Go to the website:
http://www.mhhe.com/biosci/genbio/virtual_labs/BL_16/BL_16.html
Use headphones if in the school library.
External Anatomy
1.
Define dorsal
2.
Define ventral
3. Define anterior
4. Define posterior
5.
Explain the frog’s coloration and how this helps camouflage the frog.
6.
What is the function of the mucus coating on the frog’s skin.
7.
Where are the tympanic membranes located, and what is their function.
Internal Anatomy
8. What is the glottis?
9.
What is the largest organ in the digestive system of the frog?
10. How are frogs able to also use their skin for gas exchange (respiration of oxygen)?
11. How many chambers does the frog heart have?
12. Why is the three chamber heart less efficient?
13. Where are the eggs produced?
14. What are the main excretory organs in both frogs and humans?
15. Explain the difference between the axial skeleton and the appendicular skeleton.
16. Notice that the lungs in a frog take up a much smaller proportion of the body than in humans.
Explain why these amphibians do not need large lungs.
17. What is the membrane that covers the heart called?
18. In frogs, there is a common receptacle for the digestive system, reproductive system and
excretory system. What is this called?
19. What is the tube from the testes that carries sperm called?