B). A population changes in response to a change in the environment.
"B.) profound social and economic changes occurred" because when the industrial revolution happened a lot of how we make stuff was changed, by factories, and because of this new jobs where created. This gave people money and thus social and economic changes happened.
Answer:
I think that "gills, which help it take in oxygen from the water, and two legs." this is the answer
Explanation:
Hope this helps<3
Answer:
plant cell
Explanation:
They are found in bacteria, archaea, fungi, plants, and algae. Animals and most other protists have cell membranes without surrounding cell walls.
Answer:
embryology is a field they studies and examines homologous structures
