What is most likely to happen to an animal's target cells that lack receptors for local regulators?
A) They might compensate by receiving nutrients via a factor.
B) They could develop normally in response to neurotransmitters instead.
C) They could divide but never reach full size.
D) They might not be able to multiply in response to growth factors from nearby cells.
E) Hormones would not be able to interact with target cells.
Ans: D) They might not be able to multiply in response to growth factors from nearby cells.
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____________________ is spread by droplets produced when an infected person sneezes or coughs
Fill in the blank(s) with correct word
In an isometric contraction of a skeletal muscle,
a. the tension in the muscle increases. b. movement occurs. c. no movement occurs. d. both a and c occur.
Components of the central nervous system include (check all that apply)
A. projection of neuron from spine to muscle cell. B. brain. C. nerve cord. D. spinal cord.
Which individuals will be LEAST favored when selection pressures acting on a population result in stabilizing selection?
A. Individuals at the lower end of the range of variation only B. Individuals at the upper end of the range of variation only C. Individuals distributed randomly within the range of variation D. The intermediate individuals within the range of variation E. Extreme individuals at both ends of the range of variation