Reproductive Isolation

Some female peacocks prefer males with large, colorful tales while other female peacocks prefer males with no tail at all. Females are now mating only with the tail they prefer. What type of reproductive barrier is this?

• Behavioral isolation

• Gametic isolation

• Temporal isolation

• Mechanical isolation

Tags

NGSS.HS-LS4-4

A flash flood carried a raft of Amazon ants away from their original population. There is enough distance between the two groups that they will never meet in nature again. What type of reproductive barrier is this?

• Behavioral isolation

• Temporal isolation

• Gametic isolation

• Habitat isolation

Tags

NGSS.HS-LS4-4

In the Great Lakes region of North America, gray wolves and coyotes are similar species but do not mate because their breeding periods occur at different times of the year.

• Habitat isolation

• Behavioral isolation

• Temporal isolation

• Mechanical isolation

The sperm of Species A dies when it comes in contact with the female reproductive tract of Species B. This is an example of:

• Gametic isolation

• Mechanical isolation

• Reduced hybrid viability

• Hybrid breakdown

Which of these isolating mechanisms occurs at the post zygotic stage?

• Behavioral isolation

• Gametic isolation

• Hybrid breakdown

• Mechanical isolation

Speciation that occurs in populations that live in the same geographic area is known as:

• Allopatric

• Prezygotic

• Sympatric

• Postzygotic

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

If the morphology of two species' genitalia prevents them from mating, the isolation barrier is:

• Gametic isolation

• Mechanical isolation

• Reduced hybrid fertility

• Behavioral isolation

If two species are able to interbreed but produce sterile offspring, their species integrity is maintained by:

• Reduced hybrid viability

• Reduced hybrid fertility

• Hybrid breakdown

• Gametic isolation

Isolation barriers that occur before mating include all of the following EXCEPT:

• Behavioral isolation

• Habitat isolation

• Temporal isolation

• Gametic isolation

Tags

NGSS.HS-LS4-4

I am confident in my understanding of reproductive isolation.

• Strongly agree

• Agree

• Disagree

• Strongly disagree

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2