When fertilization occurs, the sperm recognizes the egg by
A. the unique glycocalyx on the egg's surface.
B. the much larger relative size of the egg.
C. the strong acidity of the egg's environment.
D. the chemical messages the egg secretes into the interstitial space.
Answer: A
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The process of cells specializing during development is
A) embryology. B) implantation. C) differentiation. D) meiosis. E) None of the answers are correct.
In the figure showing an anterior view of the arteries, which number indicates the left internal carotid artery?
A. 1 B. 2 C. 3 D. 4 E. 5
This figure shows the thoracic cage. Which number indicates the xiphoid process?
A. 1 B. 4 C. 5 D. 7 E. The xiphoid process is not labeled on this figure.
Match the characteristic with the correct division of the nervous system.Controls conscious movement
A. Somatic motor nervous system B. Autonomic nervous system C. Both somatic and autonomic nervous systems D. Neither somatic nor autonomic nervous system