Which is a form of active transport? proteins create openings on another side of the cell membrane. proteins open up channels in the cell membrane. proteins enter and exit the cell freely. proteins push molecules through the cell membrane.

What happens when a magniseum ion ia atracked to a chlrene ion

Anurse is in the dining room and overhears a new nurse tell a client with body dysmorphic disorder that she's much too thin and must eat more before she can go home. the client bursts into tears and runs out of the dining room. what is the best way for the nurse to address this situation?

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.