evolution Flashcards

1
Q

define evolution

A

change over time

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2
Q

Darwinism

A

inherit a gene from parents that give you that trait

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3
Q

Lamarckism

A

if your parents do something you will be born w it too even if its not something they inherited

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4
Q

Darwin’s 4 principles of Natural Selection

A

More organisms are born than survive

There is a struggle for existence

Organisms share variation

Offspring inherit their parents characteristics

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5
Q

Define natural selection

A

Natural selection is when an organism is either strong enough to survive and reproduce or not and they js die

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6
Q

artificial selection

A

when an organism is picked by a human and made to breed with another to make the “perfect” organism

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7
Q

Homologous structures

A

same structure different use

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8
Q

Analogous structures

A

similar function different structure

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9
Q

Vestigial structures

A

when something that was useful a long time ago isnt useful anymore but still exist

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9
Q

true or false variation and overproduction is important so that a spices doesn’t go extinct

A

true

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9
Q

Behavioral

A

When a girl bird dosent like a the guy birds mating dance

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10
Q

Geographical

A

When an river separates a spices

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11
Q

Temporal

A

When some flowers bloom in April another the other in may

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12
Q

genetic drift

A

Genetic drift is unavoidable we cant stop it or start it

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13
Q

gene flow

A

Gene flow mixing populations tg

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14
Q

bottleneck effect

A

It restricts the amount of genes that go into the other organism

15
Q

founder effect

A

When a small group moves to a new place and reproduces

16
Q

What is “adaptive radiation?”

A

When a population grows and changes based on the place they are at

17
Q

bio fitness

A

the ability to survive and reproduce