Organisms at the bottom of the ocean have entire food webs that do not require energy from the sun Which process is MOST LIKELY providing energy to these ecosystems?

The advantage of sexual reproduction in lycophytes is the occurrence of variation in organism.

The main advantage of sexual reproduction in lycophytes is the happening of variation in the physiology as well as genetic characteristics of the plant. Lycophytes usually produce spores which is a type of asexual reproduction in which identical type of offspring produce from the spores.

While on the other hand, if the lycophytes reproduce from sexual reproduction then different types of offspring produce which has different characteristics then its parents so we can conclude that the advantage of sexual reproduction in lycophytes is the occurrence of variation in organism.

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