This animal has eggs with waterproofing
keratin, well-developed kidneys, internal
fertilization, and is an ectotherm. This animal
is
a. a snake.
b. a dog.
c. a toad.
d. an owl.
e. more than one of these.
A
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True or False: Courtship displays are behaviors that will not be performed if members of a species have been raised in isolation
A. true B. false
A friend is writing one of those “Animals Attack!” style movies, and needs your help choosing a species to fill the title role. The plot, to the extent that it can be called a plot, requires an organism that feasts on other animals with hard shells, and can sustain massive injuries only to come back stronger and in greater numbers. What species do you recommend?
a. bees b. turtles c. sea stars d. hydras
The endocrine system functions in
a. conduction. b. contraction. c. hormonal control of the body. d. protection against disease. e. cell production.
A mutation in the laci gene that makes the repressor unable to bind lactose will result in:
A: increased synthesis of b-galactocidase only when glucose is low. B: repression of b-galactocidase synthesis under all growth conditions. C: constitutive (constant) synthesis of some b-galactocidase. D: all of the above