One of the advantages that seeds have over spores is that they contain nutritional resources originating from photosynthesis by the maternal sporophyte that aid in establishment.

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This statement is true. Seeds are formed from fertilized ovules within the ovary of the maternal sporophyte. The ovules contain the embryo of the next generation, surrounded by a nutrient-rich endosperm that is formed from the fusion of polar nuclei and sperm cells during double fertilization. This endosperm provides a source of food for the developing embryo as it germinates and establishes itself as a new plant. In contrast, spores are typically single-celled reproductive structures that are dispersed by the parent plant and have limited stores of nutrients or other resources to aid in establishment.

One of the Advantages That Seeds Have Over Spores Is