Question 32
Transport in AnimalsThe diagram below is an illustration of a cell carrying out a biological process. The biological system that contains cells that carry out the illustrated biological process in humans is
- A.respiratory.
- B.nervous.
- C.reproduction.
- D.circulatory.
Show the answer and explanation
Answer: D (circulatory.)
Explanation
In humans, white blood cells (phagocytes) in the blood engulf bacteria, and blood is part of the circulatory system.