Primary succession can occur after a
a.) forest fire destroys many acres of forest
b.) volcanic eruption produces a new island
c.) field is paved over to make a parking lot
d.) garden is planted with wildflower seeds

Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.active transport involves transport proteins, and facilitated diffusion does not.facilitated diffusion involves transport proteins, and active transport does not.active transport requires the expenditure of cellular energy, and facilitated diffusion does not.

49 ! how are energy cycles and growth cycles related?

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?