Evolution Flashcards

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1
Q

Evolution

A

Hereditary changes in groups of living organisms over time.

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2
Q

Adaptation

A

Any heritable characteristic that increases an organisms ability to survive and reproduce.

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3
Q

Mimicry

A

Morphological adaptation in which one specieis evolves to resembles another species for protection or other advantages.

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4
Q

Ancestral traits

A

More primitive characteristic that appeared in common ancestors

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5
Q

Artificial selection

A

The process of directed breeding to produce offspring with desired traits.

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6
Q

Derived traits

A

New feature that had not appeared in common ancestors

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7
Q

Vestigial structure

A

Reduced form of a functional structure that indicates shared ancestry

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8
Q

Homologous structure

A

Anatomically similiar structure inherited from a common ancestor

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9
Q

Natural selection

A

Theory of evolution developed by Darwin, based on 4 ideas.
1. Excess Reproduction
2. Variations
3. Inheritance
4. Advantages of specific traits in an environment.

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10
Q

Camouflage

A

Morphological adaptations that allow organisms to blend into their surroundings.

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11
Q

Fitness

A

The ability of an individual to survive and reproduce

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12
Q

Overproduction

A

The number of organisms will increase exponentially from generation to generation if left unchecked.

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13
Q

Extinction

A

The dying out or extermination of a species

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14
Q

Transmission of aqquired traits

A

The idea by Lamark that an organism can pass on to its offspring physical characcteristcs the parent organism aqquired through use or disuse in its lifetime.

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15
Q

Competition

A

Organisms compete with each other for resources. Only the organisms who are more fit will survive

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