AP BIOLOGY

EVOLUTION

EVOLUTION OF A POPULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The genitalia of the male damselfly varies in shape. Certain males can only hold onto & mate with females whose genitalia fit. What type of reproductive barrier is this?
A
behavioral isolation
B
temporal isolation
C
gametic isolation
D
mechanical isolation
Explanation: 

Detailed explanation-1: -Any of the factors that prevent potentially fertile individuals from meeting will reproductively isolate the members of distinct species. The types of barriers that can cause this isolation include: different habitats, physical barriers, and a difference in the time of sexual maturity or flowering.

Detailed explanation-2: -Hybrid sterility is an example of post-zygotic reproductive isolation. In the case of hybrid sterility, hybridization can occur between two species, however the resulting hybrids are unable to produce; the hybrids are sterile.

Detailed explanation-3: -The study of reproductive isolating mechanisms is central to the biological species concept because these mechanisms provide barriers to gene flow that define the boundaries of the reproductive community and gene pool, and preserve the integrity of the genetic system of the species.

There is 1 question to complete.