Chapter 13.1 Cont PP

Question 1

isolated form each other by distance or geographic barrier

Answer 1

Allopatric populations

Question 2

isthmus of Panama separated members of aquatic species

Answer 2

Allopatric populations

Question 3

Over time, separated members became different species

Answer 3

Allopatric populations

Question 4

genetic evidence shows divergence form ancestral species.

Answer 4

Allopatric populations

Question 5

live near each other in the same geographic region

Answer 5

Sympatric populations

Question 6

Reproductively isolated for other reasons
1. Timing of reproduction
Apple maggot fly

Answer 6

Apple preference

Hawthorn preference

Question 7

process of chromosome duplication

Answer 7

Polyploidy

Question 8

What allows infertile plant hybrids to become fertile?

Answer 8

Polyploidy

Question 9

Cells now contain two copies of each chromosome form each parent species.

Answer 9

True

Question 10

What is the key factor in evolution of flowering plant species?

Answer 10

Polyploidy

Question 11

polyploid organism is genetically isolated from both parents

Answer 11

Instantaneous speciation

Question 12

Canola: polyploid hybrid fro make and turnip is an example of what ?

Answer 12

instantaneous speciation

Question 13

The amount of divergence required between two populations is uncertain.

Answer 13

True

Question 14

Similar in appearance, but different species

Answer 14

Dragonflies

Question 15

same species capable of interbreeding

Answer 15

Dogs

Question 16

slow accumulation of small changes over long period of time

Answer 16

Gradualism

Question 17

Sudden change followed by long periods of little change

Answer 17

Punctuated equilibrium

Question 18

There is evidence that both gradualism and punctuated equilibrium are at work.

Answer 18

True