Which of the following statements refers to a physical property of a substance? a. carbon combines with oxygen to form carbon dioxide. b. the density of copper is 8.93 g/cm^3. c. acids are corrosive. d. zinc metal reacts with an acid to produce hydrogen gas.

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement

True or false 5. carrier proteins have the ability to to change shape and physicially move molecules across the cell membrane. 6. in a facilitated diffusion, the concentration of the molecules to be moved across the cell membrane is higher inside the the cell.