12. Which of the following would have the least impact on primary productivity in the euphotic zone? O A. The emission of hydrogen sulfate along hydrothermal vents
OB. The release of nutrients from bacterial decomposers
O C. The availability of sunlight
OD. The availability of limiting nutrients

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