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Environmental Science 101 > Exam 1 > Flashcards

Exam 1 Flashcards

(65 cards)

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1
Q

Observation

A

Make observation

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2
Q

Hypothesis

A

Testable statement that’s a possible explanation to question

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3
Q

Experiment

A

Testing hypothesis

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4
Q

Scientific method

A

Systematic process of gaining knowledge

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5
Q

Environmental science

A

Study of human and environmental interactions

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6
Q

Multidisciplinary

A

Combining several scientific areas

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7
Q

Biotic

A

Living thing

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8
Q

Abiotic

A

Non-living things

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9
Q

Conservation

A

Wise use of resource

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10
Q

Renewable

A

Easily replenished in human time scale

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11
Q

Non-renewable

A

Can’t be easily replenished in human scale

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12
Q

Sustainability

A

Meeting current demand without compromising future

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13
Q

Ecological footprint

A

Impact person leaves on environment

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14
Q

Ecosystem services

A

Natural process that’s beneficial

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15
Q

First law of thermodynamics

A

Matter not created or destroyed but changes forms

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16
Q

Second law of thermodynamics

A

Without energy input = disorder

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17
Q

Thomas Malthus

A

Î population = famine
No marriage and moral restraint

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18
Q

Paul Ehrlich

A

Î population = resource war
Stop having kids & adopt from environmental deficient places

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19
Q

Garrett Hardin

A

Human overconsumption of resource
Overconsumption by many = overuse

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20
Q

Potential energy

A

Stored energy

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21
Q

Kinetic energy

A

Energy in motion

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22
Q

Entropy

A

Measure of disorder in system

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23
Q

Tragedy of commons

A

Public resource
Unregulated use
Overuse
Self-interest
Resource depletion/destruction

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24
Q

Photosynthesis

A

Raw materials: carbon dioxide, water, energy
Products: glucose, oxygen

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25
Respiration
Raw materials: glucose and oxygen Products: carbon dioxide, energy, water
26
Autotroph
Plants
27
Heterotroph
Consumer
28
Precipitation
Any water that falls from sky
29
Infiltration
Water falls on pours surface
30
Runoff
Water runs off surface of land
31
Evaporation
Liquid to gas
32
Transpiration
Water's movement through plant
33
Condensation
Gas to liquid
34
Nitrogen fixing bacteria
Bacteria convert nitrates to atmospheric nitrogen
35
Hater Bosch process
Industrial method of converting nitrogen gas and hydrogen to ammonia
36
Weathering
Breakdown of rocks andminerals
37
Eutrophication
Interaction uf living things and nutrients in aquatic environment
38
Dead zone
Low oxygen of water
39
Producer
Makes energy throughphotosynthesis
40
Consumer
Eats other organisms for energy
41
Decomposer
Breaks down dead organisms
42
Natural selection
Organism being selected by environment
43
Mutation
Naturally occurring change In DNA
44
Evolution
Process of change in organism over time
45
Population
Organism of same species in the same place at same time
46
Species
Group of organism with similar characteristics that produce fertile offspring naturally
47
Habitat
Natural environment of organism
48
Niche
N-dimensional hyperspace that defines all habitat and resources used by all species
49
Speciation
Change in genetic traits over many generations
50
Extinction
Organism can't compete or has no niche
51
Biodiversity
Variety of organisms on Earth
52
Community
All population interactions in given area
53
Tropic levels
Hierarchical levels in an ecosystem
54
Tropic transfer efficiency
Measure of how much energy is passed from one level to the next
55
Logistic growth curve
Describes how population grow in ecosystem over time
56
Carry capacity
Population of organism levels off
57
Density dependent limiting factors
Limits population as it grows
58
Density independent limiting factors
Limiting factors are random that limit population
59
Biotic potential
Time and effort needed to make and raise offspring
60
R-selected
Population thrives on short-term environmental conditions
61
K-selected
Population thrives on constant environment conditions
62
Biomagnification
Main amount of toxin at producer level isn't broken down
63
Bioaccumulation
Organism takes toxin from environment
64
Invasive species
Non-native organism that enters ecosystem outcompetes natives
65
Ecology
Relationship between organisms and environment

Environmental Science 101 (3 decks)

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