it allows them to hold water bc if it is solid
Answer:
Can someone help me please Explanation:
Is this test the I going to have trace the path a red blood cell would follow starting in the right ventricle and back to the right ventricle included will be every structure ( heart chamber, valve, vessels ) that the red blood cell would pass trough???
Answer:True because air need to enter the lungs

The branch of biology that is related to study of animals, their structures, evolution, and other factors is known as <u>Zoology</u> ~