B. They compare traits that species have
D is the answer because carbondioxide and oxygen are both needed for plants or green plants to survive.
I hope it helped
The answer is A. cleavage, differentiation, fertilization, gastralution
The cell membrane protects the cell and keeps bad things like viruses from getting in the cell.<span>It consists of the lipid bilayer with embedded proteins.</span>
The answer would be Sputnik 1. This was a Russian space probe launched during the Space Race between the Soviet Union and the United States.
