Some cells produce molecules that are transported either to the surface of the cell or are secreted by the cell. When some of these molecules come into contact with neighboring cells, they trigger expression of specific sets of transcriptional activators within those neighboring cells. This process is known as:

Select all the true statements about the cosmic microwave background radiation

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.

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis