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Biology 108 > The Work Of Charles Darwin > Flashcards

The Work Of Charles Darwin Flashcards

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1
Q

Artificial selection

A

By humans to get best breed

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2
Q

Biogeography

A

Different mammals and species live on different continents.

Variation due to separation

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3
Q

Transitional fossils

A

Loss of hind limbs into whale.

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4
Q

Adaptations

A

Camouflage for survival. Anything for survival

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5
Q

Homologies

A

Vertebrate limb, anthropoid limbs

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6
Q

Vestigial structures

A

Snakes and whales with hip bones

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7
Q

Embryology

A

At some stages humans have gills in embryo

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8
Q

Sequence homologies

A

In genes and family proteins, hemoglobins, cytochromes

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9
Q

Common genetic code

A

DNA in all life

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10
Q

Flagellum ultra structure

A

In eukarya 9+2 rule for micro tubules

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11
Q

Biological species

A

A species concept is a group of natural populations of potentially and successfully interbreeding individuals. (George Buffon)

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12
Q

Anagenesis

A

One species changes over time

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13
Q

Cladogensis

A

Species splits into two branches, some with adaptations

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14
Q

Allopatric speciation

A

Separated by force able barriers

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15
Q

Primary barrier

A

Geographic isolation

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16
Q

Potential geographic barriers

A

Continents islands mountains rivers glaciers

17
Q

Incomplete geographic isolation

A

Subspecies clines and rings

18
Q

Reunification

A

Some species will remain separate, other species may interbreed again.

19
Q

Peripheral isolates

A 
May change rapidly (punctualism)
Genetic drift
Founder effect
Smaller gene pool
Bottle neck
20
Q

Continental drift

A

Alfred Wagner

21
Q

Rifts

A

Adding continents

22
Q

When did pangea exist

A

In Permian age.

23
Q

Macroevolution

A

Extinction causes larger morphological and genetic gaps

24
Q

Allometric growth

A

Body parts have different growth rates

Biology 108 (11 decks)

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