Unit 7 NOT Quiz 2 NOT DONE ONLY SLIDE 16

Question 1

What is a species?

Answer 1

A group of organisms that is capable of mating, exchanging genetic material, and producing viable, fertile offspring

Viable means the offspring can live to adulthood and mate. Fertile means that the offspring is capable of producing offspring.

Question 2

What does viable mean in the context of a species?

Answer 2

The offspring can live to adulthood and mate

This is a key characteristic of a species’ ability to sustain its population.

Question 3

What does fertile mean in the context of a species?

Answer 3

The offspring is capable of producing offspring at all

This is crucial for the continuation of a species.

Question 4

Are mules considered a species? Why or why not?

Answer 4

No, because mules are non-fertile and cannot produce their own offspring

Mules are the offspring of donkeys and horses, illustrating the importance of fertility in species classification.

Question 5

What is speciation?

Answer 5

Speciation is the formation of new and distinct species as a result of reproductive isolation.

Reproductive isolation prevents two organisms from interbreeding and producing fertile, viable offspring.

Question 6

What does reproductive isolation mean?

Answer 6

Reproductive isolation means that two organisms can no longer interbreed and produce fertile, viable offspring.

This is a key mechanism in the process of speciation.

Question 7

What are the two broad types of speciation?

Answer 7

• Sympatric Speciation
• Allopatric Speciation

These types describe different processes through which new species arise.

Question 8

What does speciation look like drawn?

Answer 8

Question 9

What is Allopatric speciation

Answer 9

Question 10

What is sympatric speciation

Answer 10

Question 11

Reproductive Barriers are a product of ___ in both ___ and ___ speciation

Answer 11

Evolutionary mechanisms
Allopatric
Sympatric

Question 12

How does speciation affect diversity?

Answer 12

Increased species diversity allows for more genetic variation and therefore better survival against changes in the environment, including disease and natural disaster.

This prevents extinction of life on Earth.

Question 13

What are reproductive barriers?

Answer 13

Term that refers to the various ways that organisms can become reproductively isolated.

Question 14

What are the two types of reproductive barriers?

Answer 14

• Prezygotic barriers
• Postzygotic barriers

Question 15

What’s a prezygotic barrier

Answer 15

Question 16

What’s a postzygotic barrier

Answer 16

Question 17

What is habitat isolation

Answer 17

Question 18

True or false: habitat isolation can be allopatric or sympatric

Answer 18

True

Question 19

What’s temporal isolation

Answer 19

Question 20

What’s behavioral isolation

Answer 20