In the equilibrium theory of island biogeography, variation in numbers of species on islands of different distances from the mainland is seen as a function of differences in:
A) immigration rates.
B) extinction rates.
C) neither of the above.
Ans: A) immigration rates.
Biology & Microbiology
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____________________ result from immunological hypersensitivity to what should be harmless substances
Fill in the blank(s) with correct word
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Which of the following has a coelom that is not completely lined with tissues derived from the mesoderm?
a. pseudocoelomate b. eucoelomate c. protostome d. acoelomate
Biology & Microbiology
Other features of some synovial joints
What will be an ideal response?
Biology & Microbiology
A tetraploid plant species (with four identical sets of chromosomes) is probably the result of _________.
a. allopolyploidy b. hybridization and nondisjunction c. allopatric speciation d. autopolyploidy as well as hybridization and nondisjunction e. autopolyploidy
Biology & Microbiology