Which of the following statements best supports the claim that natural selection has favored genes that underpin a species-specific behavior?
A. An individual avoids certain locations or
substances associated with negative
experiences.
B. A male responds to a female-produced
pheromone.
C. Humans acquire a specific language.
D. Threatening silhouettes provoke
defensive, crouching postures in chicks.
B
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A research laboratory is attempting to collect the content of human red blood cells. The type of solution researchers should use to cause blood cells to lyse (burst) would be
A. hyperosmotic. B. isosmotic. C. hypoosmotic. D. osmotic.
The component that enriches chocolate agar is
A) chocolate. B) methyl brown indicator dye. C) heat-lysed blood cells. D) None of the answers are correct.
Chyme flows directly from the jejunum into the:a
duodenum. b. stomach. c. ileum. d. esophagus. e. rectum.
The Greek term for "molten" or "able to flow" is the root word for
A. subduction. B. transform. C. tectonics. D. sedimentation. E. fossil.