ch 53 ecosystem ecology

Question 1

ecosystem

Answer 1

comprises multiple communities and all abiotic factors affecting it.

Question 2

main power source for most ecosystem

Answer 2

sunlight –by primary producers (autotrophs)

Question 3

CHONPS

Answer 3

composition (look up)

Question 4

autotrophs

Answer 4

fix CO2

Question 5

Gross Primary Production (GPP)

Answer 5

amount of light energy converted to chemical energy (organic materials)

Question 6

what energy do primary producers use?

Answer 6

chemical energy to respire to form ATP and growth(?)