Chapter 4 + 5 Flashcards

(34 cards)

1
Q

Biodiversity

A

Variety in the earth’s species

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2
Q

Species

A

Set of individuals who can mate and produce fertile offspring

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3
Q

Species diversity

A

number and abundance of species

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4
Q

Genetic Diversity

A

variety of genes in a population

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5
Q

Ecological Diversity

A

Variety of terrestrial and aquatic ecosystems in an area

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6
Q

Functional Diversity

A

Biological and chemical process such as energy flow and matter recycling needed for the survival of species communities and ecosystems

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7
Q

Age of the planent

A

about 4.5 billion years

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8
Q

First billion was?

A

Chemical evolution

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9
Q

Life showed up when?

A

3.5 billion years ago?

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10
Q

Generalist Species

A

broad niche/wide range of tolerance

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11
Q

Specialist Species

A

narrow niche, small range of tolerance

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12
Q

Native/Indigenous

A

normally lives in an ecosystem

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13
Q

Nonnative/ invasive species

A

does not normally live in an ecosystem

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14
Q

Indicator species

A

gives an early indication/warning of danger to an ecosystem

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15
Q

Keystone species

A

has a large effect on the types and abundance of other species

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16
Q

Natural selection = ?

A

genetic resistance

17
Q

how many mass extinctions has Earth experienced so far?

18
Q

Populations evolve through?

19
Q

Biodiversity is being ruined by ?

20
Q

Each species has a specific…

21
Q

(r) selected species characteristics

A
  • growth w/o much environmental resistance
  • small
  • lots of offspring
  • no parental care
  • mature quickly
  • opportunistic
22
Q

(K) selected species characteristics

A
  • large
  • parental care
  • few offspring
  • mature slowly (years opposed to days/weeks)
  • Stable
23
Q

Population Density

A

thing/area

dense=disease spreads quicker

24
Q

Clumped dispersion

A
  • most common
  • mostly found in animal
  • they are where resources are
25
Uniform and Random dispersion
mostly found in plants
26
Mutualism (+,+)
both benifit
27
Comensalism (+, 0)
one benefits, the other is not bothered
28
Parasitism (+, 1/2 -)
one benefits, one is harmed but not killed
29
Preditation (+,-)
one benefits, one is killed
30
Competition (-,-)
both are not benefited
31
Resource partitioning
evolving to gain resources around other species
32
Co evolution
two species evolving in spite of eachother
33
primary succession
starts with nothing
34
secondary succession
mostly gone (like a forest fire destroying most of a forest)