Haploid cells differ from diploid cells in that haploid cells have _____ the number of chromosomes as diploid cells.
A. Half
B. Twice
C. Three times
D. Four times
Answer: A. Half
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Which is not composed of gray matter?
A. basal ganglia B. cortex of the cerebrum C. centrum semiovale D. None of the above E. a, b, and c
During development, the ________ ducts form the female duct system.
A. Wolffian B. parametanephric C. paramesonephric D. mesonephric E. metanephric
What condition is caused by uneven curvatures in the lens?
a. astigmatism. b. myopia. c. presbyopia. d. hyperopia. e. none of these answers.
Select the three muscles that compose the hamstrings and flex the leg.
A. Biceps femoris, semimembranosus, semitendinosus B. Biceps femoris, vastus medialis, semitendinosus C. Biceps femoris, gracilis, sartorius D. Biceps femoris, rectus femoris, semitendinosus