are bryophytes unicellular or multicellular?
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Spores of bryophytes are generally small, 5–20 micrometres on the average, and usually unicellular, although some spores are multicellular and considerably larger.
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The mosses belong to class Muscopsida in phylum Bryophyta in most classifications. As is true of all bryophytes, mosses are eukaryotic, have chlorophyll a and b as well as xanthophylls and carotenoid pigments for photosynthesis.
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Eukaryotes can be unicellular. Many people think that eukaryotes are all multicellular, but this is not the case. While prokaryotes are always unicellular organisms, eukaryotes can be either unicellular or multicellular. For example, most protists are single-celled eukaryotes!
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Amoeba, paramecium, yeast all are examples of unicellular organisms. Few examples of multicellular organisms are human beings, plants, animals, birds, and insects. ... The shape of the unicellular organism is irregular.
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Mosses and hornworts Mosses lack elaters. Within a developing hornwort sporophyte the developing spores are mixed with sterile cells of varying form. These may be single-celled or multi-celled and branched (liverwort elaters can be branched as well) or unbranched.
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Multicellular organisms evolved from unicellular eukaryotes at least 1.7 billion years ago.
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A eukaroytic organism can be unicellular or multicellular; most (but not all) protists are actually unicellular. Unlike bacteria, protists have specialized organelles, including a true nucleus confined by a nuclear membrane.
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No multicellular without nuclei As well as humans, plants, animals and some fungi and algae are multicellular. A multicellular organism is always eukaryote and so has cell nuclei. Humans are also multicellular.
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Explanation; -Fungi is the kingdom that includes both unicellular and multicellular organisms.
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Algae could be both unicellular and multi-cellular, whereas seaweeds are necessarily multi-cellular. All the seaweed species are autotrophic, whereas some algal species rely on other external food materials. ... Marine algae can distribute over shallow as well as deep waters, while seaweeds mostly inhabit shallow waters.
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Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. ... Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.
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Answer Expert Verified Pond organism is unicellular and crab is multi cellular.
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Mosses are non-vascular plants with about 12,000 species classified in the Bryophyta. Unlike vascular plants, mosses lack xylem and absorb water and nutrients mainly through their leaves.
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Basically, bryophytes are mosses. ... Angiosperms - the vast majority of living plants - do have such tissues (which is how they can grow into trees, for those that do) and reproduce with flowers, seeds and fruit, unlike mosses that reproduce with spores.
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Mosses and liverworts are lumped together as bryophytes, plants lacking true vascular tissues, and sharing a number of other primitive traits. They also lack true stems, roots, or leaves, though they have cells that perform these general functions. ... The sporophytes of bryophytes do not have a free-living existence.
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Bryophyte Generations Like all plants, the bryophyte life cycle goes through both haploid (gametophyte) and diploid (sporophyte) stages. The gametophyte comprises the main plant (the green moss or liverwort), while the diploid sporophyte is much smaller and is attached to the gametophyte.
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Bryophytes have little larger and long-lived sporophyte than green algae. Bryophytes have less developed sporophyte which is dependent on gametophytic generation but parasitism is not an advanced character.