chapter 1

Question 1

analogous to the breeders’ practice of selectively mating animals with desirable characteristics.

Answer 1

mechanism for change

Question 2

what affects natural selection?

Answer 2

climate change, change in terrain, pollution.

Question 3

relationship between a specific event and a simple response to that event.

Answer 3

reflex.

Question 4

iris contracts or relaxes in response to changes in light.

Answer 4

pupillary reflex

Question 5

irritants like dust and polled are expelled from the nore and lungs.

Answer 5

sneeze

Question 6

removing toxic substances from the stomach in an efficient, indelicate manner.

Answer 6

vomit reflex

Question 7

MAP

Answer 7

series of related acts found in all members of a species, strong genetic basis, little variability. involves whole organism.

Question 8

GBT

Answer 8

general behavior trait, tendency to engage in a certain kind of behavior, being shy, loud, ill-mannered, etc.

Question 9

demonstrates roles of genes in behavior traits

Answer 9

genetic engineering

Question 10

limits of natural selection?

Answer 10

slow changes, infectious disease, humans are hostages to genetic history, mutations, hybrids.

Question 11

cross breeding of closely related species, aid species in adaptation.

Answer 11

hybridization

Question 12

anything a person or other animal does that can be measured.

Answer 12

behavior

Question 13

reduction in intensity or probability of a reflex response as a result of repeatedly evoking the response.

Answer 13

habituation