An individual never developed otoliths in the inner ear due to a genetic defect. Which one of the following will be impaired as a result?
A) hearing low-pitched sounds
B) hearing high-pitched sounds
C) sense of head position and linear acceleration
D) maintenance of balance
E) sense of rotational movement
C
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When allele frequencies change due to individuals leaving or joining the population, which of the following has occurred?
a. Gene flow b. Genetic drift c. Natural selection d. Mutation
Sickle-cell disease results in misshapen red blood cells. What impact does this have on their ability to carry gases in the bloodstream?
A. It reduces their ability to carry oxygen, resulting in anemia. B. It makes no difference in the ability of red blood cells to carry gases in the bloodstream. C. It increases their ability to carry oxygen, resulting in anemia.
ATP acts as what type of agent in almost all metabolic pathways?
a. energy transfer b. feedback c. catalytic d. synthetic e. enzymatic
In a flowering plant, the ____ is the site of meiosis and, ultimately, the production of pollen
a. stigma b. style c. carpel d. anther
e. filament