What is the significance of chitin in arthropods? a. chitin is a storage carbohydrate that forms their exoskeleton. b. chitin is a structural carbohydrate that forms their exoskeleton. c. chitin is a protein that forms their exoskeleton.

it's the cell cycle, but cytokines is when the cell divides.

theres 3 stages interphase,mitosis,and cytokines.

interphase prepares the cell for division.

mitosis is the process of dividing the cell,it has 4 parts interphase,anaphase,metaphase,and telophase.

lastly there's cytokines,that's when the cell divides into 2 daughter cells

because the light is a great source of energy for the plants to survive. (i hope this )