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https://www.britannica.com › science › cell-biology
A cell in biology is the basic membrane bound unit that contains the fundamental molecules of life and of which all living things are

https://www.britannica.com › browse › Biology
The field of biology is subdivided into separate branches for convenience of study though all the subdivisions share basic principles Biology

https://www.britannica.com › science › biology › Aristotelian-concepts
Biology Aristotle Organisms Cells Around the middle of the 4th century bce ancient Greek science reached a climax with Aristotle who

https://www.britannica.com › science › biology › The-study-of-the-origin-of-life
Biology Origin Evolution Life If a species can develop only from a preexisting species then how did life originate Among the many

https://www.britannica.com › science › reproduction-biology
Reproduction process by which organisms replicate themselves Reproduction is one of the most important concepts in biology it means

https://www.britannica.com › science › mitochondrion
Mitochondrion organelle found in most eukaryotic cells the primary function of which is to generate energy in the form of adenosine

https://www.britannica.com › science › mitosis
Mitosis a process of cell duplication or reproduction during which one cell gives rise to two genetically identical daughter cells Strictly

https://www.britannica.com › science › biology › The-Arab-world-and-the-Euro…
Biology Arab World Middle Ages After Galen there were no significant biological investigations for many centuries It is sometimes

https://www.britannica.com › quiz › biology-bonanza
Take this Biology Quiz at Enyclopedia Britannica to test your knowledge of scientists animals and marine life