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.

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Suppose that on a small island off the coast of scotland, 32 percent of the population has blue eyes, which means that these individuals must be homozygous for the blue eye color gene (bb). the only other eye color found on the island is brown, and individuals that are homozygous for the brown eye color gene (bb) or heterozygous (bb) will have brown eyes because brown is the dominant gene. assume this population is in hardy-weinberg equilibrium. if 100 babies are born next year, how many of these would you expect to have brown eyes and be heterozygous? a. 58 b. 49 c. 29 d. 43