Energy flows through ecosystems in direction, typically from the through photosynthetic organisms or to to carnivores and decomposers.

Energy flows through ecosystems in one direction, typically from the sun, through photosynthetic organisms or green plants with algae, to herbivores to carnivores and decomposers.

Hope that helps :)

-Asmaa Ghazzawi

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

really dont know just need some points