The secretion of renin by the kidneys results in which of the following?
A) the conversion of angiotensin to angiotensinogen
B) an decrease in blood pressure
C) both a and b
D) neither a nor b
D
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As they searched for previously unknown populations of the Carson Wandering Skipper, biologists wondered if hot springs were absolutely essential to its survival. This phase of the investigation is
a. finding out what is known and asking a question b. analyzing data and asking a question c. Asking a question and testing predictions d. accepting their hypothesis and analyzing data e. accepting their hypothesis and asking a question
In which of the following atmospheric layers is the ozone hole located?
A. stratosphere B. ionosphere C. thermosphere D. troposphere
Tower karst is most common in:
a. high latitudes. b. humid midlatitudes. c. humid tropics. d. caverns. e. tropical deserts.
Most hurricane-related deaths are due to
a. ?flooding. b. ?falling debris. c. ?strong winds. d. ?lightning strikes. e. ?collapse of buildings.