Using complete sentences, explain why a lunar eclipse can only occur during the full moon phase. Explain why Earth does not experience a lunar eclipse during every lunar cycle's full moon.

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

Name the organism that belongs to the kingdom protista.

What is a general feature of a species that varies from one individual to the next (skin tone, eye color or hair color)? a. organism b. trait c. character