I think it would be crust
B). A population changes in response to a change in the environment.
Answer:
genus
Explanation:
Binomial nomenclature is a naming system for all living things. It consists of two parts with the first being the genus and the second being the specific epithet.
Hope that helps.
The organ that living things such as fish use to extract dissolved oxygen from water are the gills. As land animals and humans don't have gills, we can't breath underwater and take in the oxygen from that source.