Which of the following is an opportunistic pathogen?

A) Pneumocystis
B) Legionella
C) Histoplasma
D) Mycoplasma
E) rhinovirus


A

Biology & Microbiology

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This type of anthrax is called "wool-sorter's disease"

A. pulmonary. B. gastrointestinal. C. cutaneous. D. All of the choices are correct. E. None of the choices are correct.

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Overproduction of the mineralocoticoid ______ causes excessive water retention

a. cortisol b. aldosterone c. epinephrine d. catecholamine e. ADH

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Antlers on a male deer and the lack of antlers on a female deer are examples of

A. polygamy. B. monogamy. C. sexual behavior. D. sexual dimorphism. E. optimal foraging.

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The ultimate source of genetic variation within a population is:

a. mutations in DNA. b. adaptation of a species to environmental changes. c. homeostatic mechanisms that compensate for environmental changes. d. a sensory system that can detect an environmental change. e. a system of locomotion that allows an organism to escape environmental changes.

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