Skin contains

a. free neuron endings.
b. encapsulated neuron endings.
c. no nervous tissue.
d. both a and b.


d

Biology & Microbiology

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What will happen to the pH inside a thylakoid that is exposed to light?

A. It will increase. B. It will decrease. C. It will not change.

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Trophic pyramids typically have a ____ base and a ____ top portion

a. narrow; narrow b. narrow; wide c. wide; narrow d. wide; wide e. flat; flat

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In mitosis, one diploid nucleus becomes

a. two haploid nuclei. b. one haploid nucleus. c. two diploid nuclei. d. four diploid nuclei. e. four haploid nuclei.

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Old cultures of bacteria that have lost their ability to cause disease are said to be ________.

A. pathogenic B. virulent C. attenuated D. impotent

Biology & Microbiology