________occurs when a response removes something the organism does not want

When we say that a good theory is falsifiable, we mean

a. that it is based on a false assumption. b. that it makes predictions which can be disproved through empirical observation. c. that hypotheses derived from the theory cannot be proven. d. that it contradicts a priori beliefs about a phenomenon.

The exchange of chromosome segments during meiosis results in ________

A) severe mutations B) an extremely low likelihood that nontwinsiblings will be genetically identical C) higher rates of fraternal twins D) higher numbers of female zygotes than male zygotes