Some membrane proteins use energy to increase the concentration of hydrogen ions on one side of the membrane. by which type of transport are the hydrogen ions able to become more concentrated? a. exocytosis b. osmosis c. facilitated diffusion d. active transport

Which process must a cell undergo top identical cells at the end of cell division

Ryan rears sheep for their wool. recently the quantity of wool that ryan gets has diminished. this is because the new sheep are not that wooly. ryan should add which nutrient to their feed so that the sheep becomes more wooly? a. cornb. ironc. cottonseedd. vitamin a

Lymphatic vessels remove excess fluid from tissues. often after mammexront( the surgical procedure to remove of all or part of a breast) the lymphatic vessels draining the arm are damaged. explain a consequence of this damage. what can be done to reduce the symptoms?