Answer the following question given this paragraph: 

All amphibians have digestive, excretory, and reproductive systems. All three systems share a body cavity called the cloaca. Wastes enter the cloaca from the digestive and excretory systems, and gametes enter the cloaca from the reproductive system. An opening in the cloaca allows the wastes and gametes to leave the body.


Q: The digestive, excretory, and reproductive systems of amphibians share a body cavity called what?

 Choices:

- stoma

- anus

- urethra

- cloaca

A:
cloaca
