Biomass

Question 0

Biomass Pyramid

Answer 0

Shows amount of organic material at each step of the food chain

75g/m2
50g/m2
100g/m2

Question 1

Biomass

Answer 1

Show the amount of organic material in an ecosystem measured by g/m2

Measured in dry weight 50% removed to calculate PE in combust

Question 2

Productivity

Answer 2

Measure of the amount of energy or biomass per g/m2yr

Question 3

Primary productivity

Answer 3

Amount of energy or biomass of auto troughs per-unit area of time (g/m2yr)

Question 4

Secondary productivity

Answer 4

Amount of energy or biomass of consumers per unit of time

Question 5

Gross productivity

Answer 5

Total gain in energy or biomass measured by g/m2(Photo. No resp.)

Question 6

Net productivity

Answer 6

Is the gain in energy or biomass per g/m2yr remaining after allowing for respiratory losses

Question 7

Net primary productivity

Answer 7

Total gain of biomass Per year of autotrophs

NPP=(mean npp)/(mean biomass)

Question 8

Number pyramids

Answer 8

Shows potential Energy and biomass of levels in a food chain with number of organisms in each population

Question 9

Net secondary productivity

Answer 9

Net secondary productivity=Gross productivity-respiration