Humans make changes that affect how succession works in an ecosystem. give examples of what human do to keep succession from happening in a grassy area of your schoolyard.

this is a good question! i'll do some research and come back when i have the answer!

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

d. organisms have cells with different shapes and functions.