Describe the Experiments Performed by Steve Tanner and Colleagues (2000)with

question 30

Essay

Describe the experiments performed by Steve Tanner and colleagues (2000)with gray tree frogs to demonstrate the sexual selection they observed.Be sure to comment on the sexual selection that occurs to favor longer male calls,and how the length of calls might indicate male body condition.

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Definitions:

Gametophyte

The sexual phase in the life cycle of plants and algae that produces gametes, typically through mitosis.

Biologists

Scientists who study living organisms and their interactions with each other and their environments.

Pollen

Fine to coarse powdery substance comprising pollen grains, which are male microgametophytes of seed plants, responsible for the fertilization of the female ovule.

Self-incompatibility

A mechanism in some plants that prevents self-fertilization and promotes genetic diversity by rejecting pollen from the same or genetically similar plant.