Competitive exclusion is the result of
a. mutualism.
b. commensalism.
c. competition.
d. predation.
e. parasitism
C
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The genus Arthrobacter
A. plays an important role in the degradation of some herbicides and pesticides. B. is a significant component of the microbial flora of soil. C. forms heat resistant endospores. D. is a significant component of the microbial flora of soil and plays an important role in the degradation of some herbicides and pesticides.
Swelling, redness, heat, and pain are all manifestations of:
a. nosocomial infection. b. inflammation. c. bacterial colonization. d. coagulation.
Cytochrome c is a respiratory pigment found in the mitochondria of eukaryotes. Compared with some other proteins, it has changed very slowly over long periods of time. Why?
What will be an ideal response?
Echinoderms are classified as Bilateria, but although they start out as bilateral larvae, they change into radially symmetrical adults. You might hypothesize that their genes controlling the development of radial symmetry are
A. similar to a common set of genes controlling body form in Ctenophora and Lophotrochozoa. B. similar to genes controlling body form in Ctenophora. C. different from those controlling development of symmetry in all other radially symmetrical animals. D. similar to genes controlling body form in Lophotrochozoa. E. similar to genes controlling body form in Porifera.