The embryophytes are the most familiar group of
plants. They include
trees,
flowers, ferns,
mosses, and various other green land plants. All are complex
multicellular eukaryotes with specialized reproductive organs. With very few exceptions, embryophytes obtain their energy through
photosynthesis (that is, by absorbing light); and they synthesize their food from
carbon dioxide. Embryophyta may be distinguished from
chlorophyll-using multicellular
algae by having sterile tissue within the reproductive organs. Furthermore, embryophytes are primarily adapted for life on land, although some are secondarily
aquatic. Accordingly, they are often called land plants or terrestrial plants.
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