Which of the following is not a prezygotic isolating mechanism?
a. habitat isolation
b. temporal isolation
c. hybrid inviability
d. behavioral isolation
e. gametic incompatibility
C
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Sexual selection favors
A. large males. B. ornamentation such as bright feathers in male birds. C. traits that reduce an individual's survivorship. D. traits that increase an individual's access to reproductive opportunities E. All of these.
The bacteria that Griffith experimented with were termed R and S bacteria because
A. of the way they grew on artificial media. B. the R bacteria formed rough-appearing colonies. C. the S bacteria formed smooth-appearing colonies. D. the S bacteria had a polysaccharide capsule. E. All of the answer choices are correct.
To signal a stronger stimulus, action potentials within a neuron?
A. Get bigger B. Travel more quickly C. Last Longer D. Are generated More frequently
Which of the following is an accidental parasite of humans?
A) Ascaris lumbricoides B) Acanthamoeba C) Balantidium coli D) Entamoeba histolytica E) Plasmodium