Which of the following statements about nervous and endocrine signaling is false?
A. The nervous system and endocrine system
are both regulatory systems, but the two
systems do not communicate directly with
one another.
B. Endocrine signaling is generally more
prolonged than nerve cell signaling.
C. The nervous system transmits signals
between adjacent cells using
neurotransmitters, whereas the endocrine
system signals with hormones.
D. Neurotransmitters function only over short
distances, whereas hormones can affect cells
throughout the body.
E. Nerve cell signaling is generally more rapid
than endocrine signaling.
A
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Which of the following is an example of a chromosomal structural abnormality?
a. inversion b. trisomy c. monosomy d. aneuploidy
Which of the following may provide clues to the
evolution of sexual reproduction? a. similarities between mitosis and meiosis at the cellular level b. similarities between mitosis and meiosis at the molecular level c. gene products common to mitosis and meiosis that repair DNA d. gene products produced by an asexually reproducing species that are identical to those that serve in meiosis e. all of these
The X chromosome is
A. larger than the Y chromosome. B. smaller than the Y chromosome. C. the same size as the Y chromosome. D. genetically identical to the Y chromosome. E. larger and genetically identical to the Y chromosome.
Which is the following functions of an herbivore provides energy that becomes available to the carnivore that eats the herbivore?
A. death B. cellular respiration C. defecation D. growth and reproduction E. excretion