Which of the following statements about nervous system communication is not correct?
a. the nervous system uses electrical and chemical signals to communicate internally.
b. the nervous system uses neurons to communicate internally.
c. the nervous system uses glia cells to communicate internally.
d. the nervous system uses endocrine glands to communicate internally
Answers: 3
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Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time
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Aspecies has evolved an asexual mode of reproduction by having offspring develop from unfertilized eggs. which of the following will be true of this species' response to natural selection? there will be more deaths from natural selection because there is no mutation. there will be less genetic variation from recombination and a risk of not adapting quickly to environmental change. the species will increase in numbers because genetic variation is increased. the species will compensate for loss of genetic variation by hybridizing with other species. there will be fewer deaths from natural selection because sexual recombination always leads to extinction.
Answers: 1
Which of the following statements about nervous system communication is not correct?
a. the n...
a. the n...
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