bone cells are arranged in concentric circles around longitudinal (lengthwise) tubes containing blood vessels. these longitudinal tubes in the center of each osteon are called?

What does homeostasis means in biology?

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

4. if a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. water will move out of the cell, causing it to shrivel. b. water will move in and out of the cell at the same rate. c. water will move out of the cell, causing it to swell. d. water will move into the cell, causing it to swell.