Boiling DNA can produce ____

a. salicylic acid
b. auxins
c. cytokinins
d. abscisic acid
e. jasmonates


ANSWER: c

Biology & Microbiology

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The openings to the ___________ system (respiratory system) in insects are termed _________.

A. spiracle, tracheae B. tracheal, bronchi C. spiracle, alveoli D. tracheal, spiracles E. tracheal, stomata

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Witch hunts may have been set off by exposure to alkaloids produced by _____, which caused tremors, hallucinations, and illness

a. Candida albicans b. Epidermophyton floccosum c. Claviceps purpurea d. Histoplasma capsulatum

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An instrument that magnifies slight differences in the refractive index of cell structures is called a (n) ________ microscope.

A. phase-contrast B. densitometric C. electron D. fluorescence

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__________ are parasites that infect humans and, as adults, reside in the small intestines of the host

A. Pinworms B. Ascarid worms C. Trichina worms D. Rotifers E. Caenorhabditis elegans

Biology & Microbiology