Which of these mechanisms
involved in maintaining homeostasis requires energy?

passive transport

osmosis

diffusion

active transport

Pixels are often referred to using dpi, or dots per inch. true\false

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.