Chemical Signals That Mediate Interactions Between Two or More Members

question 75

Multiple Choice

Chemical signals that mediate interactions between two or more members of a given species are called ________.

• A)pheromones
• B)alarm signals
• C)hormones
• D)competitive exclusions

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Definitions:

Evolutionary Mechanisms

Describes the processes by which organisms change over time through adaptation, natural selection, and genetic variation.

Natural Selection

The process whereby organisms better adapted to their environment tend to survive and produce more offspring.

Genetic Variations

Differences in DNA sequences among individuals, which contribute to the diversity of traits and characteristics within a population.

Adaptive

Refers to changes or adjustments in behavior, physiology, or structure that make an organism more suited to its environment.