The embryonic genital tubercle that develops into part of the penis in male fetuses develops into the
____________________ in female fetuses. Fill in the blank(s) with the appropriate word(s).
ANS: clitoris
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In a human pedigree that traces the inheritance of albinism, a filled square represents a
A) male with albinism. B) female with albinism. C) heterozygous male. D) heterozygous female.
When examining the effects of forward and reverse mutation rates, what equation is used to calculate the change in the frequency of A2, or ?q?
What will be an ideal response?
Which of the following statements about hydrostatic skeletons is true?
a. Compression of fluids causes movement of an animal body. b. Hydrostatic skeletons permit very precise and delicate movements. c. Fluid is moved throughout an organism due to alternating contractions of antagonistic muscles. d. Contraction of the inner circular muscles causes the body of an organism to shorten. e. Contraction of the outer longitudinal muscles causes the body of an organism to lengthen.
Which of the following is NOT true of the cell theory?
A. New cells are built from recycled components of old, dead cells B. New cells originate from pre-existing cells by cell division C. The cell is the smallest unit of life D. All of the above ARE true