3. Description of which organelle betul "Creates a physical barrier ; Regulates the flow of materials into and out of the cell. Recognizes
chemical signals; Creates structure"
A. vacuoles
B. prokaryotic cells
C. cell membrane

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction

Which is true of a liquid? it has a definite volume but not a definite mass. it has a definite mass but not a definite volume. it has a definite volume but not a definite shape. it has a definite shape but not a definite volume.

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn