I believe it’s C because the heart pumps blood through the body
Two five dollar bills = ten dollars
10+10+10+10=40+286=326
In the human respiratory system, gas exchange occurs across the cells of the alveoli. Alveoli or an alveolus is the deepest part of the human respiratory system. This part of the respiratory system is a place where gas exchange between oxygen and carbon dioxide occurs from inhaled air to the blood cells<span>.</span>
Answer:
The cell wall is like the integumentary system of the human body because they both protect the interior from the external environment.
Explanation:
Answer: in biology an interacting group of various species in a common location is called. COMMUNITY
