10. The ability to sing the oocat oflafect enables a bural to communicate more effectively with neighboring males This is an example of A. a physiologitat explarsation! 8. an adaptive value explanation c. a developmental explanation D. an explanation relating to evolutionary historv. 1.. Through the activation of dopamine receptors in rewars nuclei of the brain, voung adult white. crowned sparrows are motivated to match fheir kong as clotely as possible to that of their neighbors or futors This is an example of A. a physioloyical explanation Q. an astaptive vatue explanation C. a developmental explanation. D. an explanation telating to evolutionary history 12. When sameone syys that there is a gene for a behavior, they most fikely mean that. A. the behavior is unlikely to respond to selection, since there is no variation in the species. C. the role of the environment in affecting the development of that behavior. D. individuals with different forms of that gene development of the behavior is relatively large. of that behavior) 13. The proximate signficance of the fact that artificial selection population is that if A. shows that populations offen possess the potential for evofutionary change in the present, and so they could have been evolving in the past. a. demonstrates that C. demonstrates that the pepulation. D shows population is that it al selection often leads to change in the tested and so they could have been eften possess the potential for evolutionary change in the present. B. demonstrates that genetic differences are offer in the past. among the members of a populatic diffences are often responsible for phenotypic differences C. demonstrates that the environment has relatively lifte effect on the development attributes. 0. shows that most animai species have a long way to go in reaching their full evolutionary. potential. .