The point at which a nerve impulse is initiated is the ____

a. initiation threshold
b. initiation potential
c. action potential
d. graded potential
e. threshold potential


ANSWER: e

Biology & Microbiology

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Martin Pollak studies kidney disease in humans. Why does he use human subjects in his research, instead of animal

models?

a. He can perform invasive experiments on humans. b. He can carry out planned matings in humans. c. Humans have a long generation time. d. He can examine renal phenotypes in conjunction with genetic analyses. e. He can genetically manipulate his patients.

Biology & Microbiology

During stressful situations, epinephrine initiates all of the following actions EXCEPT

a. constriction of blood vessels to the skin. b. constriction of blood vessels to the heart. c. dilation of blood vessels to the brain. d. an increase in metabolic rate. e. an increase in blood glucose levels.

Biology & Microbiology

Looking at the use of antibiotics as growth promoters in livestock through the lens of "One Health," which of the following statements best describes the interrelationship of these components of the biosphere?

A. The broad range of antibiotics available will provide widespread protection from pathogenic microbes. B. Spontaneous antibiotic resistance that arises in animals can be rapidly spread to humans who work on factory farms. C. Livestock can be more susceptible to infectious diseases because of the energy required for such rapid growth. D. Choosing a vegetarian lifestyle goes a long way to avoid risks associated with antibiotic-treated livestock.

Biology & Microbiology

The tendency of an atom to pull electrons toward itself is referred to as its ________________

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

Biology & Microbiology