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Biology 153 > Final > Flashcards

Final Flashcards

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1
Q

Certain species who are hidden because appearance matches enviroment

A

Crypsis

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2
Q

Variation must exist among a individuals in a population

A

Genetic Variation

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3
Q

Different survival and/or reproduction with respect to characteristics of individuals with a population

A

Selection

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4
Q

A process of genetic change of a population owing to natural selection, whereby the average state of a character becomes improved

A

Adaption

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5
Q

Changes from one generation to the next

A

Allele frequencies

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6
Q

generation one of allele frequency

A

0.5

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7
Q

generation two of allele frequency

A

0.6

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8
Q

when a population experiences a dramatic decline in numbers

A

population bottleneck

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9
Q

When did the Big Bang happen?

A

14 Billion years ago

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10
Q

How did was the Galaxy created?

A

A collapse cloud of “dust” and gas

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11
Q

When did our solar system form?

A

4.6 Billion years ago

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12
Q

Similar to mounds created by cyanobacteria

A

stromatolites

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13
Q

How long did the Pre-Cambrian era span?

A

3.8 BYA- 570 MYA

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14
Q

What happened in the Archean Era?

A
  • Diversion of Prokaryotes
  • photosynthesis generates oxygen
  • generation of aerobic respiration
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15
Q

What was the Cambrian Explosion?

A

-Marine animals diversify

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16
Q

Also know as a hagfish, lacked a vertebrae but had notochord. Also is our lineage

A

Agnathan

17
Q

Origin of the jawed fish; earliest terrestial plants and anthropods

A

Silurian

18
Q

Diversification of bony fish. Origin of ammonoids, insects,amphibians, ferns, seed plants.

A

Devonian

19
Q
  • Godwanaland form.

- extensive forest of vascular plants,especially lycopsids

A

Carboniferous

20
Q
  • continents aggregated into Pangea
  • Glaciations
  • Low sea levels
A

Permian

21
Q

Contain Triassic, Jurrasic, and Cretaceous period

A

Mesozoic Era

22
Q
  • First mammals
  • diversification of “reptiles”
  • first dinosaurs
A

Triassic

23
Q

Cone bearing plants

A

Gymnosperms

Biology 153 (4 decks)

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