Trophic Levels

Question 1

Sun

Answer 1

Ultimate source of energy

Question 2

Who has the most energy in a food chain?

Answer 2

Producers/ Autotrophs (plants)

Question 3

Who has the least energy in a food chain?

Answer 3

The highest trophic level

Question 4

Algae & Plants

Answer 4

Convert sunlight into glucose through photosynthesis

Question 5

Net Primary Production (NPP)

Answer 5

the rate of energy available after respiration

Question 6

Gross Primary Production (GPP)

Answer 6

the rate of energy produced through photosynthesis

Question 7

Respiration (R)

Answer 7

rate of energy burned by an organism to perform normal functions

Question 8

NPP

Answer 8

GPP minus R

Question 9

Measurements of productivity

Answer 9

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

Question 10

10% Rule

Answer 10

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

Question 11

1st Law of thermodynamics

Answer 11

energy is never created nor destroyed

Question 12

2nd Law of thermodynamics

Answer 12

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