Which of the following is an antiphagocytic factor of Staphylococcus?
A) protein A
B) catalase
C) hemolysin
D) protein M
E) hyaluronidase
A
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__________ are free-living and usually kill their prey. Fill in the blank(s) with the appropriate word(s)
The individuals that disperse as a response to high population density are
A) mostly the younger members of the population. B) more likely to survive. C) mostly females. D) usually superior competitors.
Briefly discuss physiological mechanisms that regulate body temperature in endotherms. What will be an ideal response?
Which of the following would support the hypothesis that bacteria have mutually beneficial relationships with us?
A) Bacteria can metabolize food using alternate pathways. B) Most intestinal bacteria cannot live outside the body. C) Bacteria derive benefit from waste materials in our intestines. D) Mice that were made "germ free" did not absorb and metabolize nutrients as well.