What roles do variation and retention play in natural selection? Define your terms
What will be an ideal response?
The answer should include definitions for the three major terms in the question. Next,
the answer should focus on variation; an exceptional answer will describe the two levels at which
it may exist (at the levels of the genotype and of the phenotype) and discuss how diversity at each
level is affected by natural selection. Finally, the answer should discuss how retention is
necessary for evolutionary success. An outstanding answer to this question will describe how
variation and retention interact in natural selection.
You might also like to view...
Which of the following is true regarding the effectiveness of cognitive therapy?
A. Its benefits tend to be shorter lasting than other forms of therapy. B. It is effective with a variety of symptoms. C. Few studies have been conducted to examine cognitive therapy's effectiveness. D. It is less effective than psychoanalysis.
Levels of intrinsic motivation tend to decline between middle childhood and adolescence. A primary reason cited is that
a. there is decreasing emphasis on grades through middle and high school. b. schoolwork is not challenging to most students. c. high achieving students join clubs in high school and class work becomes less interesting. d. classroom work often emphasizes memorization and testing, which is less intrinsically motivating than the more creative work emphasized in elementary school.
When Michael was a toddler, he lost his ring finger on his left hand in an accident. Now, he is an adult, and the somatosensory area originally associated with that finger:
A) is associated with the ring finger on his right hand. B) responds to stimulation from his left middle and pinkie fingers. C) is withered due to nonuse. D) causes Michael to relive the painful accident when it is stimulated.
In the following scenario, what is the conditioned stimulus? "Miles is an extremely smart dog. His owner always feeds him dog food from a can, which the owner opens using an electric can-opener
Whenever Miles hears the sound of the electric can opener, he runs into the kitchen and over to his food bowl." A) The can of dog food B) The sound of the can opener C) The food bowl D) Running to the food bowl