Answer:
After leaving the heart, the red blood cell travels through the pulmonary artery to the lungs. There it picks up oxygen making the deoxygenated red blood cell now an oxygenated blood cell. The blood cell then makes it way back to the heart via the pulmonary vein into the left atrium.
Explanation:
second question answer yan
Answer:
i think a is correct as males have tetosterone and females have estrogen and progesterone
I believe it’s D. It’s not A because when you use your muscles you’re getting micro tears that repair and grow.
