GenBio_1-2 Flashcards

1
Q

refers to the gradual process of change and deveopment of living organisms over time

A

evolution

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2
Q

1795 theory of geological change; forces change earth’s surface shape; changes are slow; earth much older than thousands of years

A

James Hutton

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3
Q

Book: Principles of Geography
Geographical features can be built up or torn down.
Uniformitarianism was “the present is the key to the past”
Darwin thought if earth did change over time, what about life?

A

Charles Lyell

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4
Q

Tendency toward perfection

A

birds using forearm

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5
Q

Use and disuse

A

Giraffe necks

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6
Q

Tendency toward perfection (birds using forearm)
Use and disuse (giraffe necks)
Inheritance of acquired traits

A

Jean Baptist Lamarck’s Theory of Evolution

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7
Q

First articulated theory of evolution:

1.Organisms continually arise by
_________________ ____________.
2.Organisms develop ___________ to changing
environment through the ______ and ________ of
organs.
3. Acquired characteristics are ________.

A

spontaenous generation
adapatation; use and disuse
inherited

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8
Q

problems with lamarck’s ideas

  1. There is no evidence of ___________ __________.
  2. There is no evidence of an _____ ________
    toward complexity.
  3. There is no evidence of ________ of
    acquired characteristics.
A

spontaneous generation
innate drive
inheritance

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9
Q

19th century English economist
If population grew (more babies born than die)
then, insufficient living space and food runs out

darwin applied this theory to animals

A

thomas malthus

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10
Q

Evolution, or change over time, is the process by which modern organisms have descended from ancient organisms

A

Darwin’s Theory of Evolution

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11
Q

Voyage of _____ _________?

A

The Beagle

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12
Q

date of voyage of the beagle?
who’s the captain?
what was their ship?

A

February 12, 1831
captained by charles darwin
sailing with H.M.S beagle

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13
Q

what was the destination of hms beagle?

A

voyage around the world

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14
Q

how long did the voyage of the beagle take?

A

5 years

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15
Q

what was the findings of the voyage beagle?

A

a revolutionary hypothesis how life changes over time

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16
Q

the _______ island

A

galaspagos

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17
Q

smallest, lowest islands where hot, dry, and nearly barron, and has a sparse vegatation

A

hood island

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18
Q

higher islands had a greater rainfall, a rich vegetation, and a different assortment of plants and animals

A

isabela

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19
Q

Darwin was fascinated in particular by the __________
and __________ in the Galápagos.

  • _______ varied in predictable ways from one
    island to another.
  • The ______ of a tortoise’s shell could be used to identify
    which island a particular tortoise inhabited.
A

land tortoises and marine iguanas
giant tortoises
shape

20
Q

intermediate shell

A

pinta island

21
Q

dome-shaped shell

A

isabela

22
Q

saddle-backed shell

A

hood island

23
Q

what are the four example animals found in galaspagos?

A

land tortoises
blue-footed booby
marine iguanas
finches

24
Q

*Darwin Observed that characteristics of
many plants and animals __ _____
among the islands

A

vary greatly

25
Q

hypothesis of the journey home

A

separate species may have arisen from an original ancestor

26
Q

He wrote an essay summarizing evolutionary change from his field work in Malaysia

A

Russel Wallace

27
Q

He gave Darwin the drive to publish his own findings

A

Russel Wallace

28
Q

Russel Wallace wrote an essay about ______ _______ from his field work in ________?

A

Evolutionary change
Malaysia

29
Q

what is the name of Darwin’s scientific literature?

A

On the Origin of Species

30
Q

Over time, _____ _________ results in changes in inherited characteristics of a population. These changes increase a species ________ in its environment.

A

natural selection; fitness

31
Q

differences among individuals of a species

A

natural variation

32
Q

nature provides the variation among different organisms, humans then select those variations they find useful.

A

artificial selection

33
Q

members of each species must compete for food, shelter, and other life necessities

A

struggle for existence

34
Q

some individuals better suited for the environment

A

survival of the fittest

35
Q

Patterns of Diversity

  • Darwin visited ______ and _______ which had similar
    _________ ecosystems.

*those __________ were inhabited by very different
animals.

  • neither_______ nor _______was home to the sorts
    of animals that lived in _______ grasslands.
A

argentina and australia; grassland ecosystems

grasslands

agentina nor australia; european

36
Q

Living Organisms and Fossils

  • Darwin collected the preserved remains of ancient
    organisms, called _______.
  • Some of those fossils ______ organisms that
    were still alive today.
A

fossils; resembled

37
Q

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

A

descent modification

38
Q

were derived from common ancestors

A

common descent

39
Q

what are the four evidences of evolution?

A

fossil record
geographic distribution of living things
homologous body structures
simlarities in early embryonic development

40
Q

The layer that show
change.
❑Show extinct species.
❑Show relationships
between ______ and
ancient organisms.

A

fossil records; current

41
Q

structures that have different
mature forms in different
organisms, but develop from
the same embryonic tissue

A

homologous structures

42
Q

same structure but different function

A

homologous

43
Q

different structure but same function

A

analogous

44
Q

organs that serve no use of the organism anymore

A

vestigial organs

45
Q

appendix, miniature legs, arms, wisdom tooth

A

vestigial organs

46
Q

Pattern of meiosis
(gametes) → fertilization
→ mitosis (adults)

A

similarities in early development