Natural Selection Flashcards

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1
Q

Adaptation

A

Any heritable characteristic that increases an organism’s ability to survive and reproduce in its environment (includes behavior aswell)

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2
Q

Fitness

A

how well an organism can survive and reproduce in its environment

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3
Q

Descent with Modification

A

species that descend with changes over time from common ancestors. different environmental conditions would lead to adaptations that causes a single species split into two or more new species

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4
Q

Natural Selection

A

process by which organisms in nature with variations most suited to their local environment survive an leave more offspring

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5
Q

Biogeography

A

study of where organisms live now and where they and their ancestors lived in the past.
How is this studied?
By patterns in the distribution of fossils and living species, combined with information from geology, tell us how organisms evolved)

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6
Q

Homologous Structures

A

Similar structures that are shared by related species and have been inherited from a common ancestor (result of descent with modification)

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7
Q

Vestigal Structures

A

inherited from ancestors but have lost their original size and function

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8
Q

Analogous Structure

A

Body Parts that serve similar functions but do not share structure and development

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