Unlike white blood cells, red blood cells lose their ________ and ________ as they mature

A) nucleus; organelles
B) nucleus; ATP
C) organelles; plasma membrane
D) nucleolus; cytoplasm
E) flexibility; shape


A

Biology & Microbiology

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The atomic weight is equal to

A. the number of electrons. B. the number of electrons plus neutrons. C. the number of protons. D. the number of neutrons and protons.

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Select the feature which is involved in the clotting process.

A. Platelets B. Fibrin C. Both platelets and fibrin D. Neither platelets nor fibrin are involved in the clotting process

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Polyploid species are least common in

a. flowering plants. b. mollusks. c. insects. d. conifers. e. mammals.

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Which of the following is not an element standardized in susceptibility testing?

A) cation concentration B) bacterial inoculum size C) pH D) patient specimen source

Biology & Microbiology