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Question 18 of 20:
Select the best answer for the question.
18. Which of the following is true of red blood cells?
O A. Once created in bone marrow, they circulate for our lifetime
O B. They live for only 120 days
O C. They have multiple nuclei
O D. They live for only about 20 days

Respuesta :

Answer:

Answer is B.

Explanation:

The fact that B is right eliminates A and D. C is eliminated because RBCs do not have nuclei.
The answer is B.

Red blood cells(RBCs) only live for about 120 days. They do not have a nucleus, which is a reason why they don’t live longer.(don’t have the main organelle in cells that has its genetic material,DNA)

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