2. An underactive thyroid gland (hypothyroidism) in childhood can result in decreased growth and difficulty concentrating. Which body system contains the thyroid gland? List two body systems affected by an underac-
tive thyroid gland. Use your regional and directional terms to describe the location of the thyroid gland.

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