What are 3 examples of signals that cells may receive? what is the most common type of signal?

Why aren't the stains like crystal violet and safranin washed away with water during simple staining?

What are the four basic classes of organic molecules how do they differ structurally and functionally

How does deforestation affect the water cycle? a. it increases the amount of runoff b.it increases the amount of percolation c. it increases the amount of transpiration d. it increases the amount of precipitationa it increases the amount of runoff