14. Which are the most common gases emitted by volcanoes?
A. hydrogen and helium
B. oxygen and nitrogen
C. water vapor and carbon dioxide
D. chlorine and hydrogen

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

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates