Imagine a Male Dragonfly Is Flying Around in an Aggressive

question 40

Multiple Choice

Imagine a male dragonfly is flying around in an aggressive pattern to find an appropriate mate in a wetland with many species of dragonflies and damselflies.Finally,he spots a female dragonfly that appears to be of the same species,based on her flight behavior and color,and the two mate.The sperm of the male,however,are unable to fertilize the eggs of the female when she lays them because her egg cell membrane proteins and carbohydrates do not recognize and bind to the male's sperm.This is an example of

• A)reduced hybrid viability.
• B)behavioral isolation.
• C)a postzygotic barrier.
• D)mechanical isolation.
• E)gametic isolation.

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Definitions:

Denitrification

A microbial process that converts nitrate in the soil to nitrogen gas, releasing it into the atmosphere and reducing soil fertility.

Nitrification

A microbiological process by which ammonia is oxidized to nitrate ions, an essential step in the nitrogen cycle.

Nitrogen Fixation

The process by which atmospheric nitrogen is converted into a form usable by plants, often facilitated by bacteria.

Assimilation

The process by which living organisms integrate nutrients from their environment into their own biological processes.