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The spores are asexual germ cells.
Algae, mosses, ferns all have specialized germ cells. As long as it is a specialized reproductive cell, it is normal for a single cell to develop into an individual without the need to combine in pairs, which is a spor. A spore is a type of reproduction or dormant cell produced by an organism that can directly develop into a new individual.
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The spores are the opposite of the seeds. Spore plants are germ cells that can produce spores and develop directly into new plant bodies by the spores themselves, and this plant cannot produce seeds. In a word, spore plants are plants that cannot produce seeds.
Seed plants can actually produce spores, and spores can also develop into plant bodies, but people can also produce seeds, so they are called seed plants separately. It's like people are animals, but people always like to separate people from other animals.
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Spore plants generally prefer to grow in shady, damp places. Whereas, algae and bryophytes live in dark and damp places.
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Bryophytes are widely distributed, they are widely distributed in forests, swamps and other shady and humid places, and can grow in large areas in a suitable environment. The role of bryophytes in nature: pioneers of nature, indicators of air pollution levels. , to maintain soil and water.
Algae plants mostly live in water, and a few live in shady and humid places on land. Their entire body is not in water, they have no obvious roots and leaves like terrestrial plants, and every part of their body absorbs water and inorganic salts from water.
Its role is also obvious, that is, to provide oxygen to living beings, can be used as fish bait, can be eaten, and can be used for medicine. Marine algae is the main body of marine plants, is a natural wealth of human beings, and there are more than 100 kinds of marine algae that can be used as edible at present. Algae are closely related to our human life.
Fern. Most of them live in a humid environment, with roots, stems, and leaves.
Common fern: Kidney fern.
Curly cypress, Guanzhong, viviparous dog spine, full of river red.
The relationship between ferns and human life: edible, fertilizer, feed, medicinal: antipyretic diuretic, etc., silver powder back fern can stop bleeding.
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Summary. Hello, the morphological and structural characteristics of algae bryophytes are as follows: 1. Algae plants Algae plants are a kind of lower organisms, with a simple structure, no roots, stems, and leaves differentiation, and are usually single-celled, colony or multicellular cells.
Algae plants are rich in photosynthetic pigments, such as chlorophyll, which can carry out photosynthesis and belong to autotrophs. Algae plants live mainly in water and also on damp rocks, tree trunks, soil surfaces, or interiors.
Hello, the morphological and structural characteristics of algae bryophytes are as follows: 1. Algae plants Algae plants are a kind of lower organisms, with a simple structure, no roots, stems, and leaves without differentiation, and are usually single-celled, colonies or multi-spring cave cell cells. Algae plants are rich in photosynthetic pigments, such as chlorophyll, which can carry out photosynthesis and belong to autotrophs.
Algae plants live mainly in water and also on damp rocks, tree trunks, soil surfaces, or interiors. Spike shouted.
2. Bryophytes bridge bryophytes have small roots and large leaves, some species only have stems, and some species only have stems and leaves, which are suitable for living in a humid and semi-shady environment. Also, the stems and leaves of bryophytes are hard and thick, do not bloom, have no seeds, and reproduce through spores.
3. Fern ferns, also known as sheep's tooth plants, are a group of spore plants with a high evolutionary level and no seeds. The sporophyte has root, stem, and leaf differentiation, and has a primitive vascular organization.
Algae plants include: cyanobacteria, dinoflagellates, chlorella, macroalgae, rotaphylla, kelp, sponge, seaweed, chlamydomonas, chromococcus, etc.
Fern oil: Alder. Clematis fern, miscanthus chow, cypress, kidney fern, etc.
Bryophytes include: cucurbita moss, black moss, ground money, large gray moss, large blonde moss, perpetual moss, etc.
Algae certainly not, because it mostly lives in water, and there is no stem differentiation Usually herbaceous plants and woody plants are divided into whether the xylem in the stem is developed, the stem of herbaceous plants is softer, the xylem is underdeveloped, bryophytes have stem and leaf differentiation, but there is no vascular tissue, it lives on land, it is relatively short, it should be herbaceous, ferns have vascular tissue, most vascular tissues are underdeveloped, there are underground transverse rhizomes or aerial ones, so most ferns are herbaceous plants, but there are also vascular tissues that form a column Woody plants that resemble trees such as alders.
Manjianghong is a fern-algae symbiont, and there is no definite conclusion as to whether it belongs to algae or ferns, but it is more likely that Manjianghong belongs to ferns. A systematic study of its classification is ongoing.
Curly cypress is a fern planted with dust. >>>More
Similarities: Algae and bryophytes do not have real roots, algae are root packs, and mosses are false roots, both of which have a fixed effect. Algae, mosses, and ferns all live in moist, shady places, however, algae mostly live in water, and only a small amount lives on moist soil and rock surfaces. >>>More
Is kidney fern a fern.
Kidney ferns are ferns. Kidney ferns are made up of roots and leaves and have no flowers, fruits, and seeds. Its roots can absorb large amounts of water and inorganic salts, and it has conductive tissues that provide the necessary water for plant growth. Kidney ferns are not tolerant to severe cold and prefer to grow in warm, moist environments. >>>More