Question

1. a single - celled organism, such as the amoeba, uses its cell membrane to take in oxygen and remove carbon dioxide. which organ system in humans has the same function as the cell membrane of an amoeba?

a) the circulatory system
b) the digestive system
c) the nervous system
d) the respiratory system

Explanation:

The cell membrane of an amoeba takes in oxygen and removes carbon dioxide. In humans, the respiratory system (lungs) is responsible for gas exchange (taking in oxygen and removing carbon dioxide). The circulatory system transports blood (including gases), the digestive system processes food, and the nervous system transmits signals.

Answer:

D. The respiratory system