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Why do moss plants need a moist (wet) environment to survive?

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The short answer is that their male gametes (their "sperm", technically called antherozoids) require an outside source of water to swim in order to find and fertilize the "female" gametes. read more

So it needs to moist" wet" environment" to obtain the water through , And it capture the light to make its nutrients , the gass through the diffusion process .. read more

They have no vascular tissue, so they must pass the water along by diffusion. The moist environment provides plenty of water to diffuse into them. 2. They only have little rhizoids instead of roots, so they cannot get moisture from deep in the ground. 3. They need a film of moisture for the sperms to swim to the eggs in the gametophyte generation. read more

Individual plants 20–30 cm (8-12 in) or more long are common in Sphagnum species for example. Wherever they occur, mosses require moisture to survive because of the small size and thinness of tissues, lack of cuticle (waxy covering to prevent water loss), and the need for liquid water to complete fertilisation. read more

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