Farmland that is under regular and continued tillage will not ____
a. undergo succession
b. produce a climax community
c. experience competition
d. suffer from the effects of disturbance
e. develop species diversity
ANSWER: b
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Bumblebees pollinate M. lewisii, whereas hummingbirds prefer the M. cardinalis. If, by chance, a hummingbird carries M. cardinalis pollen to M. lewisii, the resulting hybrid offspring are viable. M. lewisii and M. cardinalis are different species due to
A. independent assortment. B. adaptive radiation. C. gradualism. D. postzygotic barriers to reproduction. E. prezygotic barriers to reproduction.
Which of the following organisms employs a
cell plate in cell division?
a. bears b. humans c. roses d. pigs e. more than one of these
Marine bony fishes have blood that is just as salty as seawater
Indicate whether the statement is true or false
Protists cause all EXCEPT which of the
following diseases? a. dysentery b. neurotoxic shellfish poisoning c. malaria d. AIDS e. trichomonal infections of the reproductive tract