Greenery is the largest in the biosphere .

Producer bar. Or is it the first trophic level?

The role of green plants is mainly reflected in: can carry out photosynthesis to produce organic matter, are producers in the biosphere, and are the food**, oxygen** and energy** of all living things**; Most of the oxygen produced by green plants in photosynthesis is discharged into the atmosphere in the form of gases, and at the same time, carbon dioxide in the atmosphere is continuously consumed through photosynthesis, maintaining the relative balance of carbon dioxide and oxygen in the biosphere, that is, carbon-oxygen balance; Greenplants influence the water cycle in the biosphere through water uptake and transpiration

Therefore, the answer is: 1. It can photosynthesize to produce organic matter, 2. Maintain carbon-oxygen balance, and 3. Promote water cycle

The green plant groups in the biosphere are: algae plants, bryophytes, ferns, seed plants, the first three of which grow to a certain period of time to produce a type of germ cell called a spor.

2. Most algae plants live in water.

Such as freshwater: sponge, chlamydomonas seawater: seaweed, kelp), 1) morphological structure: there is no differentiation of roots, stems, and leaves.

2) Nutritional mode: Algae plant cells contain chlorophyll that can carry out photosynthesis, and the nutritional mode is autotrophic.

3) Reproduction method: Reproduction with spores.

3. The role of algae plants in the biosphere:

1) The importance of oxygen in the biosphere**.

2) Food for aquatic organisms** (e.g. fish bait).

3) For consumption (e.g. kelp, seaweed).

4) Medicinal. 4. Most bryophytes live in humid environments on land (cucurbita moss, ground money, tree trunk moss).

1) Morphological structure: generally very short, usually with similar stem and leaf differentiation, but there is no duct in the stem, there is no vein in the leaf, and the root is very simple, called pseudoroot (only plays the role of fixing the plant body).

2) Nutrition: Bryophyte cells contain chlorophyll and can carry out photosynthesis.

3) Reproduction method: Reproduction with spores (germ cells).

Bryophytes are indicator plants that monitor the level of air pollution.

5. Most ferns live in a shady and humid environment (such as Libai, Guanzhong, and Manjianghong). (1) Morphological structure: there is the differentiation of roots, stems, and leaves, and there are special channels for transporting substances in these organs - conduction tissues.

Greenery in the biosphere. There are about 300,000 known species of green plants in the biosphere, divided into four major groups: algae, bryophytes, ferns, and seed plants.

Seed plants. Fava bean seeds: seed coat, germ (germ, hypocotyl, radicle, 2** leaf) (dicots).

Corn seeds: fruit and seed coats

Greenery is the producer in the biosphere.

Green plants refer to non-unicellular plants that contain chlorophyll. It can usually be understood as a green plant. Chlorophyll in the leaves and stems of green plants can photosynthesize, convert carbon dioxide and water into sugars, and release oxygen and energy.

In order for animals to consume oxygen and exhale carbon dioxide, they must rely on green plants to photosynthesize to maintain the balance of oxygen and carbon dioxide in the earth's atmosphere.

The vast majority of human food comes directly or indirectly from green plants. Oil, coal, and natural gas, which account for the vast majority of human energy, also come mainly from ancient green plants. Wood is used by humans to build houses, cotton and linen are used to make human clothes, and many plants can also be directly used in medicine or extract active ingredients from them to make medicines.

Growth habits

It likes sunlight, but it can also bloom when planted in semi-shade. It is not strict with the soil. It is resistant to transplanting, grows quickly, and is easy to manage. The seeds scattered on the ground can grow on their own under the right temperature and humidity conditions, and are very adaptable flowers.

In the south of the country, it blooms from March to May and from August to December. It takes only 70 days from sowing to flowering, and seedlings can be raised in early spring without heating in the greenhouse, and planted in the garden, flower bed or potted plant after late frost. Green plants like green and want to make it visible to those who watch it, so it absorbs the other six monochromatic lights other than green for photosynthesis, and the reflected light is green light.

There are more than 300,000 species of green plants known in the biosphere, and plants can be divided into four major groups according to the different living environment, morphological structure and reproductive mode: algae plants, bryophytes, ferns and seed plants

So the answer is: 30