Botany | Definition, History, Branches, & Facts | Britannica
3 天之前 · Botany, branch of biology that deals with the study of plants, including their structure, properties, and biochemical processes. The principles and findings of botany have provided the base for such applied sciences as agriculture, horticulture, and forestry.
botany - Kids | Britannica Kids | Homework Help
Botany is the study of plants. It is a branch of biology. Scientists who work in the field of botany are called botanists. Botany is important because people and animals depend on plants in many ways. People and animals get food and oxygen from plants.
People Known for: sciences - botany | Britannica
Liberty Hyde Bailey was a botanist whose systematic study of cultivated plants transformed U.S. horticulture from a craft to an applied science and had a direct influence on the development of genetics,...
Matthias Jakob Schleiden | Biography & Facts | Britannica
Matthias Jacob Schleiden studied microscopic plant structures. In his studies, he observed that the different parts of the plant organism are composed of cells or derivatives of cells. Specifically, he observed that “the lower plants all consist of one cell, while the higher ones are composed of (many) individual cells.”
Paleontology | Definition, Examples, & Facts | Britannica
2024年11月14日 · paleontology, scientific study of life of the geologic past that involves the analysis of plant and animal fossils, including those of microscopic size, preserved in rocks.
Cell theory | Definition, History, Importance, Scientists, First ...
2024年12月7日 · First proposed by German scientists Theodor Schwann and Matthias Jakob Schleiden in 1838, the theory that all plants and animals are made up of cells marked a great conceptual advance in biology and resulted in renewed attention …
Carolus Linnaeus | Biography, Education, Classification System,
4 天之前 · On this basis, he designed a simple system of distinctive characteristics to classify each plant. The number and position of the stamens, or husbands, determined the class to which it belonged, whereas the number and position of pistils, or wives, determined the order.
Jan Ingenhousz | Biography, Experiments, & Facts | Britannica
2024年12月4日 · Dutch-born British physician and scientist Jan Ingenhousz is best known for the discovery of the process of photosynthesis, by which green plants in sunlight absorb carbon dioxide and release oxygen.
What did Jan Ingenhousz discover about photosynthesis?
Dutch-born British physician and scientist Jan Ingenhousz discovered that light is necessary for photosynthesis. This observation built upon work begun by English scientist Joseph Priestley, who had burned a candle in a closed container until the air within the container could no longer support combustion. Priestley then placed a sprig of mint ...
Robert Brown | Scottish Botanist & Microscopist | Britannica
6 天之前 · In 1831, while investigating the fertilization mechanisms of plants in the Orchidaceae and Asclepiadaceae families, he noted the existence of a structure within the cells of orchids, as well as many other plants, that he termed the “nucleus” of the cell.
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