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Home Q & A Board Biology-Related Homework Help General Biology
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bector215 bector215
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6 years ago
____ begins in an area where there was a preexisting community and well-formed soil.
  a. Character displacement
  b. Species richness
  c. Primary succession
  d. Secondary succession
  e. Competitive exclusion

Question 2

Ecologist James H. Brown of the University of New Mexico has addressed species composition and richness in
  experiments conducted since 1977 in the Chihuahuan desert of southeastern Arizona. In one experiment, the removal of
  three dominant species, all kangaroo rats, from several plots resulted in an increased diversity of other rodent species. This
  increase was ascribed both to lowered competition for food and also to an altered habitat, because the abundance of grass
  species ____ after the removal of the kangaroo rats.
  a. increased
  b. decreased
  c. did not change
  d. was threatened
  e. shrunk
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krystalle11krystalle11
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6 years ago
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bector215 Author
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#2
6 years ago
Excellent answers
wrote...
#3
6 years ago
Thank you
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