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APES ch 3,4,5 > Ch 3 > Flashcards

Ch 3 Flashcards

1
Q

Process of recovering energy of glucose (reverse of photosynthesis); all organisms use it

A

Cellular Respiration

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2
Q

Successive levels of organisms feeding on each other

A

Tropic Levels

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3
Q

Amount of solar energy captured by producers in an ecosystem

A

Gross Primary Productivity (GPP)

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4
Q

Takes respiration into account

A

Net Primary Productivity (NPP)

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5
Q

NPP=…

A

GPP - respiration by producers

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6
Q

Total mass of all living matter in an area

A

Biomass

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7
Q

Biomass present at a given time

A

Standing crop

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8
Q

Proportion of consumed energy

A

Ecological efficiency

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9
Q

An ecosystem is distinguished by its mix of…

A

Biotic (living) and abiotic (nonliving) factors

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10
Q

Shows how matter cycles between lithosphere, hydrosphere, atmosphere and biosphere

A

Biogeochemical cycles

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11
Q

6 processes that drive carbon cycle

A

Photosynthesis, respiration, exchange, sedimentation and burial, extraction, and combustion

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12
Q

N2 gas is converted to NH3

A

Nitrogen Fixation

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13
Q

Organisms take in fixed nitrogen

A

Assimilation

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14
Q

Decomposers excrete ammonium

A

Ammonification

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15
Q

Ammonium is converted to nitrite, then nitrate

A

Nitrification

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16
Q

Bacteria convert nitrate back into atmospheric form

A

Denitrification

17
Q

CA, Mg, K

A

Important for regulating cellular processes

18
Q

Often used to conduct water studies

A

Watershed

19
Q

Measure of how much a disturbance affects an ecosystem

A

Resistance of an ecosystem

20
Q

Rate at which an ecosystem returns to its original state after disturbance

A

Resilience

21
Q

Scientific endeavor of restoring damaged ecosystems

A

Restoration ecology

22
Q

States that ecosystem ms that experience intermediate disturbance are more diverse than those with high/low disturbance levels

A

Intermediate disturbance hypothesis

23
Q

Means we can use the organism to accomplish a goal

A

Instrumental value

24
Q

Means organism’s worth is independent of any human benefit

A

Intrinsic value

25
Q

Benefits humans obtain from natural ecosystems

A

Ecosystem services

26
Q

Goods humans can use directly

A

Provisions

27
Q

Natural systems regulating environment, as in trees absorbing carbon

A

Regulating services

28
Q

Ecosystems facilitating something as in pollination

A

Support systems

29
Q

Ecosystem recovery, dependent on diversity

A

Resilience

30
Q

Beauty of nature inspires us

A

Cultural services

APES ch 3,4,5 (3 decks)

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