The autonomic nervous system contains the sympathetic and the parasympathetic nervous system.

a. true
b. false


Ans: a. true

Biology & Microbiology

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The mechanism that causes a vine’s tendrils to grow around an object, such as a wire fenceline, is called ____

a. thigmotropism b. phototropism c. gravitropism d. vernalization e. photoperiodism

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Rough endoplasmic reticulum has ribosomes on its surface.

a. true b. false

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The ____ fungi rely on extracellular digestion

and absorption of energy-rich substances from living organisms. a. chemosynthetic b. saprobic c. parasitic d. plasmodial e. autotrophic

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The responses observed in type IV hypersensitivities result from the action of

A. IgE antibodies and mast cells. B. T cells and phagocytes. C. IgG and complement. D. autoantibodies. E. inflammatory chemicals.

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