Ch. middle 5 & 7

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

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Front (Question)

Role of consumer in an ecosystem.

Back (Answer)

Uses organic matter as a food source

Front (Question)

Role of producer in an ecosystem.

Back (Answer)

Converts inorganic matter to organic matter thru photosynthesis

Front (Question)

Decomposer’s role in an ecosystem.

Back (Answer)

Returns organic matter to inorganic matter; completes recycling of an atom

Front (Question)

What are trophic levels?

Back (Answer)

How energy moves thru an ecosystem

Front (Question)

What are 5 trophic levels and example of each?

Back (Answer)

Quartenary consumer- hawk Tertiery consumer - snake Secondary consumer - mouse Primary consumer - grasshopper Producer - plants

Front (Question)

Define food chain.

Back (Answer)

Series of organisms occupying different trophic levels thru which energy passes as a result if one organism consuming another

Front (Question)

Define food web.

Back (Answer)

Shows the kinda of interactions when several food chains overlap and intersect

Front (Question)

How does energy move thru an ecosystem?

Back (Answer)

Unidirectional

Front (Question)

Describe how carbon dioxide, producer, organic compounds, consumers, respiration, and decomposer is involved in the carbon cycle.

Back (Answer)

Draw diagram

#10

Front (Question)

Define carbon sink

Back (Answer)

Any component of cycle that holds onto carbon for a long time

#11

Front (Question)

4 examples of carbon sinks.

Back (Answer)

• Trees • Fossil fuels • Soil and sediments • Oceans

#12

Front (Question)

3 human impacts on carbon cycle

Back (Answer)

• Climate change (global warming) • Elimination of plants • Carbonic acid

#13

Front (Question)

More people = (blank) = (blank)

Back (Answer)

= more resources needed = more pollution/waste

#14

Front (Question)

Describe human population curve.

Back (Answer)

Fairly steady until about 1800, and then a huge spike in human growth

#15

Front (Question)

Factors of increased human growth overtime. (5)

Back (Answer)

• Expansion = access to new resources • Agricultural revolution - more dependable, greater quantity • Industrial revolution - efficiency, greater quantity • Producing medicines • Access to clean water

#16

Front (Question)

Type of relationship b/t growth rate and doubling time

Back (Answer)

Inverse If growth rate increases, doubling time decreases

#17

Front (Question)

Characteristics of developed countries (3)

Back (Answer)

• GREATER per capita income exceeding $25k 2 LESS populated (1.2 b) • Pop. relatively STABLE, growth rate = 7% b/t 2010 & 2050

#18

Front (Question)

Characteristics of undeveloped countries (3)

Back (Answer)

• LESS per capita income less than $2/day • HIGHLY populated (5.7 b) • HIGH pop. growth rates at 44% b/t 2010 & 2050

#19

Front (Question)

Impacts of population growth (5)

Back (Answer)

• Famine • Political unrest where great disparities in resources available exist • Environmental degradation due to poor agricultural practices and exploitation of natural resources • Water and air pollution • Extinction of species

#20

Front (Question)

Define ecological footprint

Back (Answer)

Measurement of land required to provide resources and absorb waste we produce

#21

Front (Question)

Explain I = P x A x T

Back (Answer)

Impact = pop. size x affluence x technology Affluence - amount of resources consumed/person Technology - meas. of methods used to provide resources

#22

Front (Question)

Factors that influence population growth (4)

Back (Answer)

• Biological • Social • Economic • Political

#23

Front (Question)

Biological factors that influence population growth (4)

Back (Answer)

• Birth and death rates • Fertility rates • Age dist: generations; ex “baby boomers” • Gender distribution

#24

Front (Question)

Social factors that influence population growth (2)

Back (Answer)

• Culture and traditions 2. Attitudes toward birth control