Answer: they have to maintain homeostasis, so they remove waste to do so..
<span>crushing a can.
melting an ice cube.
boiling water.
mixing sand and water.
breaking a glass.dissolving sugar and water
.shredding paper.
<span>chopping wood.</span></span>
Answer: A Physical Barrier. ...
Selective Permeability. ...
Endocytosis and Exocytosis. ...
Cell Signaling. ...
Phospholipids. ...
Proteins. ...
Carbohydrates. ...
Fluid Mosaic Model.
Explanation: Have a good rest of the day.
The answer for this one is A
