What component of Earth's atmosphere exists entirely as a result of photosynthesis? oxygen pas
n mas
O water vapor
O nitrogen gas
O carbon dioxide gas

Explain the side effects of cancer treatments

What would be the most likely result if the ph of the stomach were increased to 5

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.