Answer: Non-vascular plants do not have any differentiated vascular tissues, whilst the seedless vascular plants have vascular tissues to transport water and other nutrients within their bodies. Non-vascular plants do not possess roots, stems, or leaves, but seedless vascular plants have roots, stems, and leaves.
The main similarity between these two plant groups is the presence of chloroplasts and green chlorophyll pigments that allow plants to conduct photosynthesis. This gives plants the ability to make their own food and it also makes them the primary producers of the ecosystem.
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