Chapter 22

Question 1

What is a species?

Answer 1

Group of potentially interbreeding natural populations which are reproductive isolated from other groups

Question 2

Mechanism that prevent the formation of a zygote

Answer 2

Prezygotic

Question 3

Mechanisms that prevent development into an adult

Answer 3

Postzygotic

Question 4

Species that are found together

Answer 4

Sympatric

Question 5

Formation of new species

Answer 5

Speciation

Question 6

What would maintain a species that are geographically separated?

Answer 6

Only exchanging genetic material with others of the same species

Gene flow

Question 7

Who proposed the biological species concept?

Answer 7

Ernst Mayr

Question 8

What is temporal isolation?

Answer 8

Isolation in TIME prevent hybrid

Question 9

Mechanical isolation

Answer 9

Structural differences prevent mating

Question 10

The zygote begins to develops but dies before completion

Answer 10

Embryonic mortality

Question 11

Polyploidy

Answer 11

Increase in the chromosome number

Question 12

A single species rapidly evolved into large group of species

Answer 12

Adaptive radiation

Question 13

Produces rapid bursts of evolution

Answer 13

Punctuated equilibrium

Question 14

Slow change from one species to another

Answer 14

Gradualism

Question 15

Ecological isolation:

Answer 15

Species using different portions of the habitat