Chapter 3 Test Flashcards

1
Q

Levels of ecosystem

A

organism, population, community, ecosystem, biosphere

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2
Q

Communities

A

populations of different species occupying the same space

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2
Q

Ecosystem boundaries

A

locations showing the gradient of one ecosystem to another (not concrete)

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3
Q

Photosynthesis/CR

A

6CO2+ 6H20 -> C6H12O6 + 6O2

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4
Q

Aerobic

A

with oxygen

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5
Q

Anaerobic

A

without oxygen

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6
Q

Chemosynthesis

A

Organisms getting energy from inorganic compounds without sunlight

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7
Q

Trophic levels

A

Successive levels of organisms consuming one another - less energy/population as you move up - higher predators need to consume more

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8
Q

Scavengers

A

organisms that eat corpses

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9
Q

Detrivore

A

break down waste/tissue (dung beetle)

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10
Q

Decomposer

A

Fungi/Bacteria that completely break down nutrients and recycle them

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11
Q

Biomass

A

total mass of all living matter in area

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12
Q

10% rule (ecological efficiency)

A

Average decrease of 10% as you move up a level

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13
Q

Macronutrient

A

Fats, Carbs, Proteins (essential)

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14
Q

Limiting nutrient

A

scarce nutrients which limits growth of organisms

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15
Q

Eutrophication

A

natural enrichment of a body of water which causes less oxygen, mostly from runoff of plant nutrients (algal blooms)

16
Q

Dead zones

A

parts of a body of water without enough oxygen to support life

17
Q

Hypoxic

A

not enough oxygen

18
Q

Apoxic

A

no oxygen at all

19
Q

Watershed

A

land of area that all streams to same outlet

20
Q

Disturbance

A

event that changes population size

21
Q

Resistance

A

measure of how much disturbance affects ecosyteme

22
Q

Resilience

A

rate of speed an ecosystem can return to original speed after disturbance

23
Q

Restoration ecology

A

study of/implementation of damaged ecosystems

24
Intermediate disturbance hypothesis
Intermediate amount of disturbances results in greatest biodiversity
25
NH3
Ammonia
26
NH4
Ammonium
27
NO2
Nitrite
28
NO3
Nitrate
29
SO2
Sulfur Dioxide
30
SO3
Sulfur Trioxide
30
H2SO4
Sulfuric Acid
31
C2H6S
Dimethyl Sulfide
32
Ammonification
Ammonia to Ammonium
33
Nitrification
NH3 (Ammonia) to NO2 (Nitrite) NO3 (Nitrate)
34
Assimilation
Organisms incorporate NO3 (Nitrate) and NH3 (Ammonia)
35
Denitrification
NO3 (Nitrate) to atmosphere
36