Natural Killer cells are

a. neutrophils.
b. macrophages.
c. present outside of the lymphatic system only.
d. helper T cells.
e. detect and kill virus-infected body cells.


E

Biology & Microbiology

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In which organ does the smooth ER inactivate drugs and harmful metabolic byproducts?

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A factory with an office that controls the information sent to separate rooms for each of the manufacturing and shipping processes would be analogous to

a. a virus. c. a prokaryotic cell without a nucleus. b. a prokaryotic cell with a nucleus. d. a eukaryotic cell with a nucleus.

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What fraction of the genome contains genes that are essential for the survival of an organism, meaning that a homozygous null for them is lethal?

What will be an ideal response?

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The products of photosynthesis are:

A) CO2 and sugar B) O2 and sugar. C) H2O and sugar. D) O2 and CO2

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