Baroreceptors, which are located in the carotid artery, aorta, and kidneys, are MOST sensitive to changes in:
A) fluid volume.
B) blood pressure.
C) acid-base balance.
D) sodium concentrations.
Ans: B) blood pressure.
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A normal red blood cell count range is __________
per microliter. a. 3,000–6,750 b. 20,000–100,000 c. 250,000–300,000 d. 1.6–3.2 million e. 4.8–5.4 million
In the case of genetic exchange in bacteria by transformation, there is an exchange of DNA back and forth between cells, and a complete diploid cell is formed
Indicate whether the statement is true or false
A lack of ozone is dangerous because ozone
A. cools the Earth. B. filters out dangerous ultraviolet rays. C. triggers the development of clouds. D. is a reserve for oxygen that we breathe.
_____________ are more closely related to whales than to _____________.
Fill in the blank(s) with the appropriate word(s).