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Trophic Levels

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Total cards: 12•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (12)

#1
Front (Question)

Sun

Back (Answer)

Ultimate source of energy

#2
Front (Question)

Who has the most energy in a food chain?

Back (Answer)

Producers/ Autotrophs (plants)

#3
Front (Question)

Who has the least energy in a food chain?

Back (Answer)

The highest trophic level

#4
Front (Question)

Algae & Plants

Back (Answer)

Convert sunlight into glucose through photosynthesis

#5
Front (Question)

Net Primary Production (NPP)

Back (Answer)

the rate of energy available after respiration

#6
Front (Question)

Gross Primary Production (GPP)

Back (Answer)

the rate of energy produced through photosynthesis

#7
Front (Question)

Respiration (R)

Back (Answer)

rate of energy burned by an organism to perform normal functions

#8
Front (Question)

NPP

Back (Answer)

GPP minus R

#9
Front (Question)

Measurements of productivity

Back (Answer)

units of energy per unit area per unit time (kcal/m2/yr)

#10
Front (Question)

10% Rule

Back (Answer)

Only 10% of the energy from one level makes it to the next level; the other 90% is used by the organism & lost as heat

#11
Front (Question)

1st Law of thermodynamics

Back (Answer)

energy is never created nor destroyed

#12
Front (Question)

2nd Law of thermodynamics

Back (Answer)

each time energy is transferred, some of it is lost as heat