Answer: Breaks down, decomposes. Decomposers include bacteria and fungi.
D is the answer! I just had this question and it was right !
the male reproductive system consists of external organs. while the female reproductive system consists of internal organs.
Answer:
The alveolar walls and capillary walls share a membrane. That's how close they're getting. This allows oxygen and carbon dioxide to readily pass from the respiratory system to the circulation. Oxygen molecules bind to red blood cells as they return to the heart.
