evolution Flashcards

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1
Q

did we evolve directly from apes?

A

no but we have a common ancestor

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2
Q

what is evolution

A

change in populations of a species

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3
Q

what is catastrophism

A

some organisms from the past are very different from the ones today

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4
Q

what is Uniformitarianism?

A

past geological still at work
today

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5
Q

what was lamark’s hypothesis?

A

Inherit acquired characteristics and believed life could evolve from nonliving matter

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6
Q

were lamarks hypothesis’s true?

A

no

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7
Q

how many years did charles darwin spend studying wild life?

A

5 years

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8
Q

what was darwins boat name (maybe extra credit)

A

HMS Beagle

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9
Q

what are the 4 steps of natural selection?

A

overproduction, genetic variation, struggle to survive, and differential reproduction.

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10
Q

what is overproduction

A

each species produces more offspring than can survive

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11
Q

what is genetic variation

A

species in a population have a variety of traits

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12
Q

what is struggle to survive

A

species with adaptive traits are more likely to survive and reproduce

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13
Q

what is carrying capacity

A

different ecosystems can only hold a certain amount of species

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14
Q

what is the evidence of evolution

A

fossils, biogeography, homologous structures, and vestigial structures

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15
Q

what are homologous structures

A

structures that are the same on the inside

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16
Q

what are vestigial structures

A

structures in our body that we have no use for

17
Q

how old is earth

A

4.6 billion years old

18
Q

how long ago did dinosaurs go extinct

A

65 million years ago

19
Q

explain adaption

A

inherited characteristics that increase an organisms ability to survive

20
Q

what is fitness measured in?

A

grandchildren

21
Q

explain fitness

A

unique to a particular environment

22
Q

what is descent with modification

A

Each living species has descended, with
changes, from other species over time

23
Q

what is artificial selection

A

nature gives variation, humans choose the useful one of the variances

24
Q

define Archaeopteryx

A

missing links

25
Q

define morphology

A

“soul” of evolutionary evidence

26
Q

what is a gene pool

A

combined collection of genes for all traits in a population

27
Q

what is genetic equilibrium

A

occurs when the gene frequencies are stable from generation to generation

28
Q
A