BIOL Flashcards

(8 cards)

1
Q

Define evolution

A

Evolution is a change in gene frequencies in a population over the generations

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2
Q

What is natural selection?

A

non-random reproductive success

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3
Q

What is genetic drift?

A

Genetic drift is random change in gene frequencies in a population due to small population size.

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4
Q

1 for Charles Darwin Outline

A

All organisms have tremendous capacity for reproduction

BUT
Resources are limited

SO

There will be a struggle for existence (not all who are born will be able to survive and reproduce)

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5
Q

2 for Charles Darwin Outline

A

WE ALSO KNOW THAT

Individuals within populations are variable, and some of that variability is heritable

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6
Q

3 for Charles Darwin Outline

A

Some individuals are better suited to current environmental conditions than others , so individuals with some characteristics will survive and reproduce better than others.

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7
Q

4 for Charles Darwin Outline

A

The genetic makeup of populations will change over the generations and so average phenotypes of the organisms will change

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8
Q

5 for Charles Darwin Outline

A
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