According to MacArthur and Wilson's hypothesis of island biogeography, species immigration and extinction rates on a particular island correlate to:
a. the island's size and distance from the mainland
b. the island's stage of ecological succession
c. the number of other islands in their archipelago
d. how the island formed
Answer: a. the island's size and distance from the mainland
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When behavioral biologists look at the ultimate evolutionary benefit to animal communication, they
are primarily focusing on the effects of the communication on the individual's ability to ____.
a. maintain a favorable position in the dominance hierarchy b. produce surviving offspring c. intimidate other animals d. form alliances with other animals e. find food
At what point(s) on the graph does the growth of the predator population = 0?
a. at the 2 points where the prey isoclines intersects the ellipse b. at the 2 points where the predator isoclines intersects the ellipse
Which of the following is not a step in binary fission of bacterial cells?
A. Protein band forms in the center of the cell to mark the division site. B. Septum formation separates the cytoplasm of the daughter cells. C. Mitotic spindle segregates daughter chromosomes. D. Chromosome is replicated.
The lens of the eye becomes opaque with ________.
Fill in the blank(s) with the appropriate word(s).