Isotonic, Hypotonic, and Hypertonic Solutions. Water moves readily across cell membranes through special protein-lined channels, and if the total concentration of all dissolved solutes is not equal on both sides, there will be net movement of water molecules into or out of the cell.
Answer: False
Explanation: This is FALSE because the bats make a high frequency sound and we can't hear that type of sound.
Human skulls is mainly Bone structure an immovable joint