60 days
120 days
365 days
465 days
Answer is Right!
Answer is Wrong!
The correct answer is B. 120 days.
Red blood cells are produced in the bone marrow and have a lifespan of about 120 days. They circulate in the blood and carry oxygen to the tissues. After they die, they are removed from the blood by the spleen and liver.
Option A is incorrect because red blood cells have a lifespan of about 120 days, not 60 days.
Option C is incorrect because red blood cells have a lifespan of about 120 days, not 365 days.
Option D is incorrect because red blood cells have a lifespan of about 120 days, not 465 days.