Chapter 5 & 18

Question 1

Which cellular processes can create genetic diversity?

Answer 1

Mutation and recombination

Question 2

What is the process by which part of one chromosome breaks off and attaches to another chromosome?

Answer 2

Recombination

Question 3

_________ is a trait that improves an individual’s fitness.

Answer 3

An adaptation

Question 4

Evolution occurs through

Answer 4

natural, artificial, and genetic drift

Question 5

Which is NOT related to geographic isolation?

Answer 5

sympatric speciation

Question 6

Which pair would most increase the rate of evolution within a species?

Answer 6

Large population size and slow environmental change

Question 7

Which ecosystem has gained the attention of conservationists most recently?

Answer 7

Sensitive Marine habitats

Question 8

Which is NOT an example of an instrumental value of ecosystems?

Answer 8

Scenery

Question 9

Which endangered species is associated with logging of old growth forests in the Pacific Northwest?

Answer 9

Owl

Question 10

Which North American species was driven to extinction by overharvesting?

Answer 10

Pigeon

Question 11

Exotic species often pose a threat to native species because

Answer 11

often crossbreed with native species

Question 12

What organization keeps a “Red List” of worldwide threatened species?

Answer 12

ICUN

Question 13

Climate change would most likely have the greatest impact on

Answer 13

organisms in extreme environments such as the Arctic.

Question 14

Which endangered population in the United States has benefitted from a highly successful captive breeding program?

Answer 14

Condor

Question 15

The greatest threat to the northern spotted owl population is

Answer 15

continued logging

Question 16

An abrupt transition in habitat that brings two communities into contact with each other is called

Answer 16

edge habitat

Question 17

Which area in the biosphere reserve depicted would likely support the most biodiversity?

Answer 17

Core zone

Question 18

Which area is most likely to be exposed to human impact?

Answer 18

Transition area

Question 19

Which group of organisms represents the largest number of species listed in the Endangered Species Act?

Answer 19

plants