30 points. i need with this quiz questions. 1. which statement is true about cell differentiation? a.) it produces identical cells. b.) it happens during cell division. c.) it causes cells to change and specialize. d.) it happens in all cells. 2. which order of events is correct? a.) zygote -> stem cells -> cell differentiation. b.) mitosis -> cell differentiation -> stem cells. c.) stem cells -> zygote -> cell differentiation. d.) zygote -> cell differentiation -> mitosis. 3. as a tree ages, it has to keep making xylem and phloem cells to carry food and water. which statement explains how this occurs? a.) cell division is not necessary for a plant to keep making more xylem and phloem cells. b.) the existing xylem and phloem divide to make more xylem and phloem. c.) xylem and phloem from one part of the plant are transferred to another part. d.) meristim cells divide and some of the new cells differentiate into xylem and phloem. 4. which process is most critical for different types of tree cells to develop. a.) dna replication. b.) cell differentiation. c.) sexual reproduction. d.) mitosis. 5. when the seeds of a tree first start to grow, what would happen if the cells did not differentiate? a.) other cells would differentiate. b.) all seeds would be identical. c.) the seed could form roots, but not leaves. d.) the dna would make new cells.