Vaccinations introduce ____ into the body to stimulate the immune system and produce immunological memory

a. T cells
b. antigens
c. antibodies
d. B cells


e. dendritic cells


ANSWER: b

Biology & Microbiology

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Ahermatypic refers to:

a. reef building corals. b. non-reef building corals. c. plate coral. d. brain coral. e. finger coral.

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____ is composed of dense connective tissue

a. Adipose b. Blood c. Bone d. Cartilage e. A tendon

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Four of the five choices listed below are parts of the

ecosystem. Select the exception. a. energy b. raw materials and nutrients c. decomposers d. producers e. consumers

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What part of the blastocyst will develop into the human embryo and eventually into a fetus?

A. archenteron B. inner cell mass C. chorion D. blastopore E. trophoblast

Biology & Microbiology