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Unformatted text preview: sets. 8. Since the haploid set of chromosomes has half the chance of having much genetic variety (only one set of chromosomes versus two), it most likely decreases the general variability of the organism that is dominant in the gametophyte generation. 9. They are considered more advance because in the event there is a lack of water the plant can still reproduce through the air. 10. The root-vascular system enables the plant to carry nutrients from the bottom of the plant (in the soil) to the top of the plant and then release toxins into the soil as well. 11. The plants needed to develop cuticles (to cover the stomata) on the leaves and outer surface to prevent water loss and ground tissue to carry nutrients and water. 12. The plants needed to develop vascular tissue (for support) to grow both tall and wide....
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This note was uploaded on 04/14/2008 for the course BIOSCI 0060 taught by Professor Ruthermund during the Spring '08 term at Pittsburgh.
- Spring '08