Some foods can trigger sensations of both bitterness and sweetness simultaneously. This phenomenon suggests that:
a. bitterness and sweetness receptors are co-localized.
b. bitterness and sweetness are picked up by the same receptors.
c. bitterness and sweetness receptors are similar.
d. none of these
Answer: C
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a. general school performance. b. moral development. c. musical ability. d. level of altruism.
The process of meiosis results in the development of cells that have half the number of cells as the original one
a. True b. False Indicate whether the statement is true or false
A child's measured intelligence is a product of the child's genotype for intelligence and the quality of the environment in which the child is raised and educated. This is an example of the concept of
a. genetic anomaly. b. gene therapy. c. reaction range. d. delayed reaction.
Most major structural birth defects are due to problems that occur:
a. during the germinal stage of prenatal development b. during the fetal stage of prenatal development c. once the fetus has reached the age of viability d. during the embryonic stage of prenatal development