Biology | Definition, History, Concepts, Branches, & Facts | Britannica
网页2024年8月17日 · biology, study of living things and their vital processes. The field deals with all the physicochemical aspects of life. The modern tendency toward cross …
仅显示来自 britannica.com 的搜索结果Advances to the 20th century
Biology - Evolution, Genetics, Microbiology: Seventeenth-century advances in …
The Discovery of Cells
Biology - Cell Discovery, Microscopy, Histology: Of the five microscopists, …
Molecular Biology
Molecular biology, field of science concerned with studying the chemical …
Aristotelian Concepts
Biology - Aristotle, Organisms, Cells: Around the middle of the 4th century …
Origin, Evolution, Life
Biology - Origin, Evolution, Life: If a species can develop only from a preexisting …
The Theory of Evolution
Biology - Evolution, Natural Selection, Adaptation: As knowledge of plant and …
Epigenetics
epigenetics, the study of the chemical modification of specific genes or gene …
Marine Biology
marine biology, the science that deals with animals and plants that live in the sea. It …
Microbiology
Ask the Chatbot a Question Ask the Chatbot a Question microbiology, study …
Reproduction
Reproduction, process by which organisms replicate themselves. Reproduction is …
Biology Portal | Britannica
网页The field of biology is subdivided into separate branches for convenience of study, though all the subdivisions share basic principles. Biology encompasses fields such as botany, …
Cell | Definition, Types, Functions, Diagram, Division, Theory, & Facts
- A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic i…
What is cell theory? - Cell theory states that the cell is the fundamental structural and functional unit of living matter. I…
What do cell membranes do?
- A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic i…
Biology and its branches | Britannica
网页biology, Study of living things and their vital processes. An extremely broad subject, biology is divided into branches. The current approach is based on the levels of …
Biology - Evolution, Genetics, Classification | Britannica
网页2024年8月17日 · Much of the earliest recorded history of biology is derived from Assyrian and Babylonian bas-reliefs showing cultivated plants and from carvings depicting …
Biology - Evolution, Genetics, Species | Britannica
网页2024年8月17日 · Qualitative and quantitative analyses in biology make use of a variety of techniques and approaches to identify and estimate levels of nucleic acids, proteins, …
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Genetics | History, Biology, Timeline, & Facts | Britannica
网页2024年8月18日 · Genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, medicine, and biotechnology. …
biology - Students | Britannica Kids | Homework Help
网页The scientific study of living things is called biology. Biologists strive to understand the natural world and its living inhabitants—plants, animals, fungi, protozoa, algae, bacteria, …
biological classification - Students | Britannica Kids
网页In biology, classification is the process of arranging organisms, both living and extinct, into groups based on similar characteristics. The science of naming and classifying organisms is called taxonomy.
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