PLEASE HELP PLEASE HELP PLEASE HELP PLEASE What causes the phases of the moon? (Select two.)
A. The Moon is illuminated on one side by the Sun.
B. Earth casts a shadow on the Moon.
C. The Moon's position relative to Earth results in phases.
D. The Moon changes shape as it moves around Earth.

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

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

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems