Because whatever grows there, dies there, and the nutrients remain there. Since wetlands are mostly flat with stagnant or slow moving water. The wetness also keeps the nutrients in place, unlike dry places where the nutrients can be blown away or eroded by water
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Where is the chart? I need to see the chart in order to answer your question.
Answer is the phylum is Pteridophyta. Pteridophytes are first land plants, examples ferns, <em>Lycopodium, Selaginella. </em>Members have liginified cells and developed conducting tissues called vascular system to conduct water and synthesized food. They reproduce through spores, seeds do not develop in pteridophytes.
