The correct answer is Bryophytes.Explanation:Bryophytes include the various mosses and liverworts.These are non-vascular embryophytes, characterized by the presence of an independent gametophyte and parasitic sporophyte.Bryophytes commonly grow in moist, shaded areas in hills.These are called amphibians of the plant Kingdom because, these can live in soil, but are dependent on water for sexual reproduction.However, their sperms, known as antherozoids, are flagellate and require water to swim and reach the eggs in order to fertilize them. As a result, they require water for sexual reproduction.The plant body of bryophytes is more differentiated than that of algae.Ecological importance:Some mosses provide food for herbaceous mammals, birds, and other animals.Mosses along with lichens are the first organisms to colonize rocks. Hence, these help in biological succession.Mosses form dense mats on the soil.Marchantia has medicinal properties to cure lungs and liver infections. It also has anti-tumor properties.Additional InformationThallophytes:Thallophytes, also known as algae, are a primary division of the plant kingdom.They lack stems, roots, leaves, and other vascular plant parts.Pteridophytes:Pteridophytes are primitive seedless vascular plants also called cryptogams.The pteridophytes are found in cool, damp shady places through some may flourish well in sandy-soil conditions.Gymnosperms:Gymnosperms are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilization.These plants are mostly found in colder parts of the northern hemisphere, where they form extensive forests.These are small groups of seed plants.