Why do mosses and ferns need water for sexual reproduction?

As you know, mosses and ferns, along with two other groups (horsetails and moss), are spore plants. These plants, as can be seen from their distribution area, take root in the humid parts of the planet. This is due to the fact that their spores need a lot of water. Spores, unlike seeds, do not have nutritional reserves (in the case of seeds, they are contained in the fruit shell), therefore, without water, they cannot receive nutrients from the soil and fertilize. That is why water is necessary for the reproduction of mosses and ferns.

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