Mycobacterium tuberculosis has chemicals in its cell wall that inhibit the fusion of phagocytic vacuoles with lysosomes. Which statement is true?
A. Antibodies produced by the cells can more effectively kill the bacteria.
B. The bacterium can survive and replicate inside of the phagocytic cell.
C. The bacterium can produce chemicals which can destroy the macrophage housing the bacterium.
D. Complement proteins will take over to destroy the bacteria.
Answer: B
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Several butterfly species that are edible to birds have very similar color patterns to the generally inedible monarch butterfly. This is best described as an example of what?
A. Müllerian mimicry B. Batesian mimicry C. crypsis D. intimidation E. aposematic coloration
Humans (which have a chromosome number of 2n=46) have 92 chromosomes during G2
a. True b. False
Which of the following represents an activity within a population?
a. a fox consuming a rabbit b. the absorption of nitrogen by bacteria and converting it to a form useful to plants c. a peacock spreading and shaking his feathers to attract a female d. moss growing on the north side of a large pine tree e. a virus causing rabies in a dog
Excitatory neurotransmitters ________.
Fill in the blank(s) with the appropriate word(s).