Homeostasis balances the cell's water and salt levels.
Answer:
Indpendant veriable cigarette smoking on lung cancer.
Dependant veriable:The number increase
Explanation:
<span>Accurately judge depth and distance of objects in our three dimensional world. If humans had no depth perception we wouldn't be able to walk very well, or do much with our hands...we wouldn't know how to do much in terms of spatial intelligence.</span>