PLZ HELP FAST! Which of the following explains how carrier proteins function in transporting molecules across the membrane of the cell during facilitated diffusion? A They catalyze reactions that move solutes in or out of the cell.
B They change shape to move molecules in or out of the cell.
C They create tunnels for solutes to move in or out of the cell.
D They provide energy to move molecules in or out of the cell.

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

Anurse is preparing to administer ampicillin 500 mg in 50 ml of dextrose 5% in water (d5w) to infuse over 15 min. the drop factor of the manual iv tubing is 10 gtt/ml. the nurse should set the manual iv infusion to deliver how many gtt/min? (round the answer to the nearest whole number. use a leading zero if it applies. do not use a trailing zero.)

Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure