Why do new red blood cells survive for only a few months?

A) The oxygen that red blood cells carry damages their organelles.
B) Red blood cells do not have most organelles or a nucleus.
C) The heart pumps red blood cells so often that their membranes deteriorate.
D) The hemoglobin that red blood cells carry is toxic.


Answer: B

Biology & Microbiology

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What on a female has the same embryonic tissue as a male and is very sensitive?

What will be an ideal response?

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How does the early development of the mouse differ from that of Caenorhabditis?

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One hypothesis that has been proposed regarding the origin of life suggests that life evolved from an "RNA world" to today's "DNA world

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Biology & Microbiology