D) each parent passes only one factor for each trait to its offspring
blood flows at a high pressure, so if the arteries are thin and less muscular, the arteries can explode due to the pressure. so it needs thick and muscular properties so that it can withstand the increasing pressure of the flow of blood.
im not sure why it needs to be elastic. Hope it helped :)
Answer:
Kepler
<em>Hope</em><em> this</em><em> helps</em><em> </em><em>:</em><em>)</em>
Answer: birds
Explanation: because birds have wings and they can fly
The total amount of living tissue within a given tropic level is called the biomass
