Which of the following best illustrates an instinctive behavior in cats?
a. scratching at the door to get in or out
b. hunting and killing
c. knowing when it is time to get fed
d. being afraid of dogs
e. All of the above are instinctive behaviors in cats.
Ans: b. hunting and killing
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Sexual reproduction
A. allows more offspring to be produced per individual. B. allows a parent to pass on 100% of their genes to offspring. C. increases genetic variation. D. results in the formation of a haploid zygote. E. only occurs in vertebrates.
Depolarization occurs due to the diffusion of K+ across a neuron plasma membrane
Indicate whether the statement is true or false.
High doses of AAS have been found to
a. increase TSH levels. b. decrease gonadotrophins from the hypothalamus. c. increase natural testosterone. d. decrease thyroxine levels. e. have no effect on TSH levels.
The spaces that separate adjacent Schwann cells are
a. neuroglia. b. myelin sheaths. c. nodes. d. dendrites. e. synapses.