Q: Most amphibians breathe with these as larvae?


Read this paragraph and choose the correct option from the provided answers:

Amphibian skin contains keratin, a protein that is also found in the outer covering of most other four-legged vertebrates. The keratin in amphibians is not too tough to allow gases and water to pass through their skin. Most amphibians breathe with gills as larvae and with lungs as adults. However, extra oxygen is absorbed through the skin.

 Choices:

- nostrils

- lungs

- pores

- gills


A:
gills