Stevan Arnold offered slug meat to newborn garter snakes from different populations to test his hypothesis that the snakes' response to slugs _____
a. was shaped by indirect selection
b. is an instinctive behavior
c. is based on pheromones
d. is adaptive
B
Biology & Microbiology
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a. true b. false
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A) increased total niche space (variety of resources) B) increased niche overlap C) increased specialization D) A, B, C, or any combination of these
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Which of the following cell types does not move materials through the body of the plant?
A. sclerenchyma B. sieve tube members C. xylem vessel members D. tracheids E. sieve cells
Biology & Microbiology