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- plant, (kingdom Plantae), any multicellular eukaryotic life-form characterized by (1) photosynthetic nutrition (a characteristic possessed by all plants except some parasitic plants and underground orchids), in which chemical energy is produced from water, minerals, and carbon dioxide with the aid of pigments and the radiant energy of the Sun, (2) essentially unlimited growth at localized regions, (3) cells that contain cellulose in their walls and are therefore to some extent rigid, (4) ...
www.britannica.com/plant/plantPlant | Definition, Evolution, Ecology, & Taxonomy | Britannica
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2024年5月8日 · Leaf, any usually flattened green outgrowth from the stem of a vascular plant. Leaves are the primary sites of photosynthesis and manufacture food for plants. They are an integral part of the stem system and can be modified into a variety of other plant organs.
2024年5月13日 · The following article summarizes the morphological, physiological, and ecological features of plants. The principal focus is on structure and function, physiology, life histories, and ecology, and on how the various plant groups have evolved, dispersed, and become adapted to life on land.
Glimpse the diversity of plant evolution that provides food and habitats for other life to thrive- Study adaptations evolved by bryophytic mosses, hornworts, and liverworts and those of vascular angiosperms
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2024年5月3日 · Plant cell, the basic unit of all plants. Plant cells, like animal cells, are eukaryotic, meaning they have a membrane-bound nucleus and organelles. Their characteristic cell wall is composed of cellulose, and they contain chloroplasts for photosynthesis.
- The Editors of Encyclopaedia Britannica
1 天前 · Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their activities.
2024年4月30日 · Epidermal Tissue System | Anatomy of Flowering Plants | Biology | Khan Academy - YouTube. Khan Academy India - English. 416K subscribers. Subscribed. 0. 1 view 1 minute ago. Is the plant body...
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5 天前 · Plant physiology is a sub-discipline of botany concerned with the physical, chemical and biological functioning of plants. Latest Research and Reviews...
5 天前 · Plants are multicellular organisms that, like humans, require nutrition to keep them alive and functioning. Unlike humans, plants do not possess a specialized digestive system to take in and absorb nutrients from food sources. Amazingly, plants have evolved to solve this problem by making their own food!
