Answer: Lungs
Explanation: The pleura encloses each lung by a double layered serous membrane
Answer:When food, water, and space used by a population stay stable over time.
Explanation:
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In humans, the medulla region of the brain is mainly responsible for the regulation process of respiration. It is also called the respiratory rhythm centre. The chemosensitive area located near the respiratory centre sends signals across nerve impulses to alter the rate of expiration to eliminate compounds.
Nearly flat. Rhinos don't really reproduce rapidly.