Allopatric speciation requires
a. accelerated gene flow.
b. physical separation.
c. physical diversity.
d. behavioral diversity.
e. all of these.
B
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When two organisms do not mate because they breed at different times of the year, they are exhibiting ____
reproductive isolation.
a. behavioral b. ecological c. gametic d. mechanical e. temporal
Which of the following is evidence that the arthritis afflicting children in Lyme, Connecticut, was due to bacterial infection?
A) treatable with penicillin B) not contagious C) accompanied by a rash D) affected mostly children E) transmitted by ticks
When the product of reaction A becomes the reactant of reaction B, the metabolic pathway is
A. convergent. B. cyclic. C. bidirectional. D. divergent. E. linear.
NADPH and ATP from the light reactions are both needed
a. in the carbon fixation stage to provide energy and reducing power to rubisco b. to regenerate three RuBP from 5 G3P c. to combine two molecules of G3P to produce glucose d. to reduce 3-phosphoglycerate to G3P e. to reduce the H+ concentration in the stroma and contribute to the proton gradient