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.

What was the land like over 500 million years ago? what was under the sea?

Ialready know the answers to these questions and they are on the attachment. but i just need to know why that answer is the correct one. plz asap! this is for a report that i need to email by 10!

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.