If a researcher lesions the amygdala of a laboratory rat, the rat will most likely become a) hungry. b) sexually aroused. c) physically uncoordinated. d) less aggressive. e) aphasic.

D) less aggressive.

Explanation:

Amygdala is a structure in the brain, part of the limbic system with the role in emotional responses such as aggressive behavior, sexual arousal, fear, but also it is also involved in memory and decision-making.

Stimulated amygdala increase aggressive behavior, while lesions induce opposite effect.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics