Answer:
Mammals, insects, fish and plants all have different systems of exchanging gas. For mammals we breathe into our lungs, for fish they use gills and insects use spiracles.
Explanation:
hope it kind of helps sorry if it doesn't
Bicarbonate ion is important organic molecule in the buffering system of blood.
Answer:
Which phrase defines a community?
<u>group of the same species that live together</u>
Explanation:
as community means where same character animals used to live
Answer:
Outside factors are not always constant meaning that there is little way to control them.
Explanation:
