Australia and Eurasia each have a mouse-like mammal, one a marsupial, the other a placental. This is
an example of
a. long-distance migration.
b. homology.
c. adaptive radiation.
d. convergent evolution.
e. coincidence.
D
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The function of the viral protein coat is to
A. protect the viral genetic material. B. protect the viral genetic material and aid in the transfer of the viral genetic material between host cells. C. elicit the production of protective antibodies. D. aid in the transfer of the viral genetic material between host cells.
A heptose contains how many carbon atoms?
A) 4 B) 5 C) 6 D) 7
During an infection, lymph nodes swell because ________ cells accumulate inside them
a. natural killer (NK) cells b. B c. T d. mast
The action of a white blood cell engulfing a bacterium is known as ____
a. pinocytosis only b. phagocytosis only c. exocytosis and phagocytosis d. endocytosis and pinocytosis e. phagocytosis and endocytosis