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ladyapj ladyapj
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6 years ago
Differences in intensity of a stimulus
  1.do not affect the impulse transmitted.
  2.are indicated by the number of nerves activated.
  3.control the part of the brain that receives the stimulus.
  4.are encoded in the frequency of action potentials on a single axon.
  5.are indicated by the number of nerves activated, and are encoded in the frequency of action potentials on a single axon.

Question 2

Altruism in animals _____.
  a. increases another individuals reproductive success at its own expense
  b. has no selective value
  c. is a recent evolutionary development observed only in mammals
  d. is attributable to random behavior
  e. is commonplace in vertebrates
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anu30anu30
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6 years ago
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ladyapj Author
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6 years ago
This is very helpful, my teacher this year is not good
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