Symptoms of PMS are caused by

a. uterine lining separation and expulsion during
the period.
b. the hormone aldosterone causing more
absorption of sodium.
c. lack of exercise causing hormonal changes.
d. lack of sunlight limiting hormone production.
e. all of these.


Answer: b

Biology & Microbiology

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When the body experiences stress, the sympathetic division of the autonomic nervous system stimulates the adrenal

medulla to release ____.

a. epinephrine only b. norepinephrine only c. knockout hormones only d. epinephrine and norepinephrine e. epinephrine, norepinephrine, and knockout hormones

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A larynx is found at the beginning of each insect trachea

Indicate whether the statement is true or false.

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When bringing water to a boil in the mountains the time needed to reach the boiling point is

What will be an ideal response?

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Chagas' disease is transmitted by a bug with mouthparts that penetrate blood vessels. Which type of exposure does this represent?

A) mucous membrane portal B) parenteral route C) skin portal D) contact E) fomite

Biology & Microbiology