書寫 A. They allow the movement of molecules from one cell to another, enabling communication between cells. B. They prevent the cell membrane from pulling away from the cell wall during periods of drought. C. They eliminate the need to produce signaling molecules and eliminate the need for ...
(Unit 1 Progress Check: MCQ) A: tropical rain forest This biome contains a nutrient-rich environment created by falling leaves and trapped organic materials from the large trees, and it provides the ecosystem service of filtering pollutants from water. ...