Three children exhaust themselves trying to push a large rock that does not budge. have they done any work? explain your answer.

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur

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