Answer:
I see this was posted a week ago, do you still need help with this question?
Explanation:
It is false that living organisms contain unique chemical elements which are not found in non-living systems.
Answer:
Children younger than 5, but especially children younger than 2 years old. Adults 65 years of age and older. Pregnant women (and women up to two weeks postpartum)
Explanation:
The two differences you see when comparing the four chambers of the heart is that the arteries have a thicker wall and veins have thin walls and that the arteries carry oxygenated blood away from the heart which means they get more pressure than veins.
Twenty two thousand so the answer is c
