Which of the following lymphoid organs filters and purifies lymph fluid?

A) lymph nodes.
B) bone marrow.
C) spleen.
D) thymus.
E) none of the above.


Ans: A) lymph nodes.

Biology & Microbiology

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b. follicle-stimulating hormone; the development of the follicle
c. estrogen; breakdown of the endometrium
d. progesterone; continuing to build up the endometrium
e. estrogen; ovulation

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How can selection cause two populations to become different with time?

What will be an ideal response?

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Indicate whether the statement is true or false

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