Good listeners: select one: a. nod or respond with "i see" or "that's interesting" to let the speaker know she or he is listening. b. always let the other person start the conversation. c. jump into the conversation when the speaker makes a point they agree with. d. pay attention without asking questions.

answer; ///it examines the interaction between genetics and culture in shaping human biology;

well since twins have about the same dna they dont have one think in common which is the figer print. nobodys fingerprint is the same. if your using twin you would most likely get around the same results for both of them because of the genetics.. i hope this