![](http://image.absoluteastronomy.com/images/topicimages/g/gr/great_white_shark.gif)
The great white shark, scientific name Carcharodon carcharias, also known as the great...
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Cuttlefish are marine animals of the order Sepiida. They belong to the class...
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![](http://image.absoluteastronomy.com/images/topicimages/b/bl/black_panther.gif)
A black panther is typically a melanistic color variant of any of several...
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![](http://image.absoluteastronomy.com/images/topicimages/l/li/life.gif)
Life is a characteristic that distinguishes objects that have signaling and self-sustaining processes from those that do not, either because such functions have...
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An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by...
![](http://image.absoluteastronomy.com/images/topicimages/p/ph/photosynthesis.gif)
Photosynthesis is a chemical process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight. Photosynthesis occurs in plants, algae,...
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Outer space is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing...
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An ecosystem is a biological environment consisting of all the organisms living in a particular area, as well as all the nonliving , physical components...
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Deoxyribonucleic acid is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms . The...
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A fungus is a member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds , as well as...
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Abiogenesis or biopoesis is the study of how biological life arises from inorganic matter through natural processes, and the method by which life on...
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Paleontology "old, ancient", ὄν, ὀντ- "being, creature", and λόγος "speech, thought") is the study of prehistoric life. It includes the study of...
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Symbiogenesis is the merging of two separate organisms to form a single new organism. The idea originated with Konstantin Mereschkowsky in his 1926 book Symbiogenesis...