Answer:
A
Explanation:
She already got it I was just adding an anwser for someone if anybody didnt see her comment on the question.
GOOD LUCK ON THE TEST!!
A. it is based on a scale of 0 to 14
The cell membrane is said to be selectively permeable is because it allows a select few things to go through while stopping the passage of other stuff.
Fresh water is any body of water with a low salt concentration. Organisms in fresh water various challenges which includes; Osmotic concentration such that fresh water is permanently dilute and most cells cannot function at this concentration of ions. Varying temperatures, variation in oxygen levels and reproduction and life cycle due to permanence of habitat and physiological difficulty of regulating osmotic concentration in larvae and juveniles.
I believe the mineral he found was mica.
