Answer:
The ventricles of the heart have thicker muscular walls than the atria. This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria. ... This is due to the higher forces needed to pump blood through the systemic circuit (around the body) compared to the pulmonary circuit.
Explanation:
The Human Heart — PT Direct
Answer:
cellular respiration...that's breathing out of humans
and through human activities like burning of fossil fuels...
Answer:
The answer is in the picture
Explanation:
I don't really know how to explain I mean cells were just made that way so I hope this answer helped.
