What potential consequence on the cardiovascular system may result from smoking?
A) an increase in the production of HDL
B) a decrease in the production of LDL
C) a higher risk of atherosclerosis
D) an increase in the risk for lung cancer
C
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Which of the following is considered to be the unifying theory of biology?
A. theory of relativity B. the genetic code C. evolution D. germ theory
Which of the following mutations is considered a synonymous change?
A) ACC to AUG B) CUU to AUU C) CUU to CUA D) CUU to CUA E) UUU to UUA
Import of mitochondrial proteins from the cytoplasm requires
a. ATP. b. a proton electrochemical gradient across the inner membrane. c. a potassium electrochemical gradient across the inner membrane. d. ATP and a proton gradient across the inner membrane.
The large, ancient land mass that contained all the continents is known as ____.
A. Laurasia B. Pangea C. Gondwana D. Atlantis E. Europa