Chapter 22 Descent with Modification-Darwin Flashcards

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1
Q

Evolution-Darwin Phrase and Book

A

“Descent with Modification”/ Origin of Species

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2
Q

Darwin Revolution challenged traditional views of Earth (2)

A

Carolus Linnaeous naming system and Jean Baptise de Lamarck’s use and disuse

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3
Q

What does descent with modification by natural selection explain?

A

the adaptations of organisms and unity/diversity of life

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4
Q

Key Observations of Darwin’s Voyage (2)

A

Plants/animals in temperate regions of S. America more resembled species of S. American tropics than other species in Europe/Unique species of Galapagos Islands

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5
Q

Adaptations

A

Characteristics inherited-helps with survival and reproduction

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6
Q

Natural Selection proved

A

person with inherited traits more likely to survive/reproduce due to traits

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7
Q

Descent with Modification

A

Earths species are descendants of ancestral species

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8
Q

History of life is like a tree (evolutionary tree)

A

diagram that reflects evolutionary relationships among groups of organisms

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9
Q

Artificial Selection

A

selective breeding of plants/ animals-desirable traits

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10
Q

Darwin’s Interference #1 and #2

A

Individuals with inherited traits more likely to survive/reproduce-leave more offspring/unequal ability of survival/reproduction will lead to accumulation of favorable traits in population

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11
Q

Main Ideas of Nat. Selection (2)

A

Individuals in population vary in heritable characteristics/Organisms produce more offspring than environment can support

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12
Q

Homology

A

similarity resulting from common ancestory

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13
Q

Direct Observation of evolution (2)

A

1) Herbivores eating primary food source 2)Disease/pathogens evolve too

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14
Q

Homologous Structures

A

Similar structures diff. species-common ancestory

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15
Q

Vestigial Structures

A

remnants of features served a function in organism’s ancestors

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16
Q

Convergent Evolution

A

Independent evolution of similar features in different lineages

17
Q

Analogous Structures

A

species share features bc of convergent evolution

18
Q

Fossil Record

A

document origin of major new groups of organisms-past organisms differed from living organisms

19
Q

Biogeography

A

Geographic distribution of species