Why would it be beneficial for cells to wait until a critical population density is reached before expressing certain genes

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.

Someone me with this: a mineral' is determined by its actomic structure.

Which step is not included in the step approach to calculating the greatest common divisor?