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.
Glaciers cover 10% of land surfaces.
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Answer:
The bottom one shows how the circulatory system of a fish functions.
Answer:
Organisms that produce chemical energy for the rest of the environment are the ones that produce chemical energy for the environment
Explanation:
Source: Trust me Bro
