natural selection 2

anatomical features that are similar in function but different in structure, and are found in species that are not closely related

• directional selection

• behavioral adaptation

• ancestral traits

• analogous structures

characteristics that are inherited from a common ancestor and remained relatively unchanged since then

• behavioral adaptaionst

• ancestral traits

• analogous structure

• disruptive selection

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a behavior an organism develops or changes over time to help it survive in its environment

• ancestral trait

• speciation

• behavioral adaptation

• disruptive selection

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form of natural selection which the entire curve moves; occurs when individuals at one end of a distribution curve have higher fitness than individuals in the middle or at the end of the curve

• directional selection

• stabilizing selection

• disruptive selection

• speciation

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natural selection that favors intermediate variants by acting against extreme phenotypes

• behavioral adaptation

• disruptive selection

• stabilizing selection

• directional selection

a form of natural selection in which a single curve splits into two; occurs when individuals at the upper and lower ends of a distribution curve have higher fitness than individuals near the middle

• stabilizing selection

• disruptive selection

• directional selection

• speciation

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the formation of new and distinct species in the course of evolution

• competition

• speciation

• selection

• adaption

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the study of similarities and differences in the anatomy of different species

• ancestral traits

• analogous structure

• competition

• comparative anatomy

occurs when more than one individual or population tries to make use of the same resource

• competition

• speciation

• behavioral adaptations

• variation

Tags

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is the role and position of a species within an ecosystem

• genetic mutations

• ecological niche

• natural selection

• variation