Pictured are three graphs showing natural selection acting on a population of birds either through directional selection (A), stabilizing selection (B), or
disruptive selection (C). Which graph would be appropriate if the bird
population was evolving to take advantage of different types of food?

• Graph A
•Graph B
• Graph C
•None of the above

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.