The sex of a new organism is determined by whether
A) the X and Y chromosomes separate into sperm cells or ovum.
B) an X-bearing sperm or a Y-bearing sperm fertilizes the ovum.
C) the sperm fertilizes an X-bearing egg or a Y-bearing egg.
D) the ovum is carrying an X chromosome or a Y chromosome.
B
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The danger of using the representativeness heuristic is that it may lead us to:
a. make judgments in a very inefficient, time consuming fashion. b. judge event likelihood solely on the basis of event memorability. c. disregard probability information that is relevant to our judgments. d. judge objects only in terms of their functional utility.
Most of the height gained during the adolescent growth spurt is due to
A. lengthening of the trunk B. lengthening of the legs C. intervertebral disk regeneration D. thickness in joint cartilage E. spinal curvature