It's both B.They can never be depleted and C.They are replaceable by natural means.
Answer:
<h3>for digestive system ( similarities)</h3>
Explanation:
1. All three digestive systems take up majority space inside their bodies
2. All three of the animals food prey begin through the mouth and end through the anus
The thicker and more muscular walls of arteries help them to withstand and absorb the pressure waves which begin in the heart and are transmitted by the blood which gives them higher blood pressure than veins
Answer:
It's A. love :), also sorry that people answer when they don't actually know it, and there just trying to get points.
Explanation:
I think the parietal cells have canaliculi which secretes it
