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6. What are xylem tubes made of?
- Dead cells joined end to end with no end walls between them and a hole down the middle
- Living cells joined end to end with no end walls between them and a hole down the middle
7. Which way does the transport go in?
- Both directions
- One direction
8. What are phloem plants made of?
- Columns of living cells, with large holes in the middle to allow stuff to pass through
- Columns of living cells, with small holes in the ends to allow stuff to pass through
- Columns of dead cells, with small holes in the ends to allow stuff to pas through