Humans domesticated the rose from a wild ancestor with large, scented flowers. Why might fragrant chemicals in flowers be adaptive for wild roses?
A) They attract herbivores.
B) They repel seed dispersal agents.
C) They attract pollinators.
D) They prevent seed germination.
C
Biology & Microbiology
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The indigenous microflora of the external ear canal is most like the indigenous microflora of the:
A) colon. B) mouth. C) skin. D) distal urethra.
Biology & Microbiology
The most frequent agent of nosocomial bacteremia is:
a. catalase-negative micrococci. b. coagulase-positive staphylococci. c. catalase-negative stomatococci. d. coagulase-negative staphylococci.
Biology & Microbiology
The ecological role of fungi is that of:
a. decomposers. b. producers. c. grazers. d. predators. e. herbivores.
Biology & Microbiology
Which species is believed to be the first creature to walk erect and possibly be the first hominin?
What will be an ideal response?
Biology & Microbiology