HELPP ASAP A student sets up a compost bin outdoors. Inside the bin microorganisms convert the student’s vegetable and paper scraps into rich fertilizer.

Which of the following best describes the role that these microorganisms play in natural habitats?
A. The microorganisms help balance the numbers of producers and consumers.
B. The microorganisms help keep nutrients cycling through the ecosystem.
C. The microorganisms turn solar energy into sugars.
D. The microorganisms function as autotrophs.

Agenetically engineered corn plant is approved for agricultural use. the plant produces pollen that can make its own toxins. these toxins protect the corn plant against pests and no longer require the application of chemical pesticide. what is a likely impact on the farmer of growing such a variety of corn? a- the financial costs for the farmer would be lowered since less crops would be lost to pests. b-the financial costs for the farmer would be lowered since more crops would be lost to pests. c-the farmer may be held responsible for increasing chemical pollution. d-the farmer's expenses for pest control would increase due to an increase in bee population.