Movement of an action potential in only one direction along a neuron is a function of __________.

Fill in the blank(s) with the appropriate word(s).


Answer: the refractory period, when sodium channels are inactivated

Biology & Microbiology

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The study and reconstruction of phylogenies is

A.  evolution. B.  systematics. C.  taxonomy. D.  taxidermy. E.  cladistics.

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The first true vaccine protected against disease caused by a(n) ________ pathogen.

A. bacterial B. protozoal C. fungal D. viral E. archaeal

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Lyme disease is only seen in people living in Lyme, Connecticut.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Sessile organisms overcome problems relating to sexual reproduction by 

A. reproducing asexually. B. releasing sperm into the water that surrounds them. C. having internal fertilization. D. producing larvae.

Biology & Microbiology