Identify the characteristic that allows the cell membrane to regulate which substances enter and exit the cell. nonpolar selectively fluid selectively permeable flexible

When should a bar graph be used? a. when there is no independent variable. b. when the independent variable is continuous and does not show a relationship to the dependent variable. c. when the independent variable is continuous and shows a causal link to the dependent variable. d. when the independent variable is composed of categories and does not show a relationship.

What is the relationship between absorbance of light and the rate of photosynthesis?

Is this mrna or rna need need the answer in a hurry