Which of the following produces histamine in response to an allergic reaction?

a. mast cell
b. macrophage
c. cytokine
d. interferon


a. mast cell

Biology & Microbiology

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Chromosomal aberrations can be produced by

exposure to a. viruses. b. radiation. c. various chemicals. d. viruses and radiation only. e. viruses, radiation, and various chemicals

Biology & Microbiology

The leafy fern that you might have as a house plant is the ____ generation

a. diploid sporophyte b. diploid gametophyte c. haploid sporophyte d. haploid gametophyte e. triploid sporophyte

Biology & Microbiology

Pseudonocardia is an organism that is hosted by ________.

A. ants that cultivate fungal gardens B. wood-eating insects C. marine invertebrates D. people with severe acne

Biology & Microbiology

Which of the following pairs is mismatched?

A) Endoplasmic reticulum — internal transport B) Golgi complex — secretion C) Mitochondria — ATP production D) Centrosome — food storage E) Lysosome — digestive enzymes

Biology & Microbiology