According to the text, the genetic link is strongest for __________

Researchers asked students about their initial recollections a few days after the Challenger explosion and then 2 1/2 to 3 years later. The results showed that

A) few students showed significant changes in their memories with the passage of time and their initial recollections were largely accurate. B) few students failed to show changes in their memories with the passage of time and about one-third showed dramatic changes in memory. C) most students showed dramatic changes from their initial recollections to their later recollections. D) most students showed changes in their memories with the passage of time and about one-third showed dramatic changes in memory.

Examination of the cumulative record of responses of an experimental animal reveals a horizontal line that represents responses across the last seventy experimental sessions

What would you conclude about the animal's responses based on this cumulative record? a) The animal learned the task quickly. b) The response has been extinguished. c) Spontaneous recovery had been demonstrated. d) A fixed-ratio schedule of reinforcement was used.