Which statement best describes what happens during a lunar eclipse? A. Earth passes directly between the sun and the moon
B. The moon passes directly between earth and the sure
C. The sun casts a shadow directly on earth and the moon
D. Earth casts a shadow directly on the sun and the moon

An organism has the following traits multicellular cant photosynthesize has a skull. wht kingdom does this organism most likely belong too?

Which feature of a human community is similar to a niche in a biological community

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.