Which of the Following Observations Can Be Explained by the Energetic

question 15

Multiple Choice

Which of the following observations can be explained by the energetic limitation of an organism's total reproductive effort?

• A) Darter diversity is very high in the Ozark Highlands.
• B) Darters that lay many eggs lay smaller eggs, on average.
• C) Seed size in plants varies over at least 10 orders of magnitude.
• D) Seed size in plants depends in part on the plant's seed dispersal mechanism.
• E) More than one of the choices.

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Definitions:

Specific Receptor

Specific Receptor refers to a protein molecule that receives and responds to a specific substance or signal, such as a neurotransmitter or hormone, by initiating a specific cellular response.

Pheromone

Chemical substances secreted by animals that influence the behavior or physiology of others of the same species, often related to reproductive signals.

Intersexual Selection

The process by which females select their mates on the basis of some physical trait that indicates genetic quality or good health; sometimes selection depends on some resource offered by the males.

Courtship Ritual

A set of display behaviors in which an organism tries to attract a mate and secure mating opportunities.