Many deep-sea fishes have tubular eyes with
a. a single large retina.
b. two retinas.
c. multiple retinas.
d. no retina.
e. compound eyes.
B
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During a blood transfusion, what can occur when the antigens on the blood cells of a blood donor interact with the antibodies that are present in the plasma of a recipient that has a different blood type?
A. an autoimmune reaction B. an infection C. an agglutination reaction D. an inflammatory reaction E. a temperature response
In the morning, you are woken by hundreds of birds chirping in the trees outside your window. Which of the following is evidence of adaptation for birds living in a group?
A. decreased aggression among members of the same species B. increased availability of nesting sites C. increased resistance to diseases D. increased availability of seeds to feed on E. protection against predators
In the life cycle of a typical cnidarian, which of the
following is free-swimming? a. medusa b. polyp c. planula d. medusa and planula e. all of these
Which type of media has ingredients that foster the growth of certain bacteria while suppressing the growth of others?
A) defined B) selective C) synthetic D) complex E) differential