Which of the following is essential to the nitrogen cycle? rain
plants
plankton
hurricanes

Which of these is the correct sequence for the phases of mitosis? prophase, interphase, metaphase, telophase prophase, metaphase, telophase, anaphase prophase, metaphase, anaphase, telophase interphase, prophase; metaphase, anaphase

What material did the moon come from?

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?