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- organ, in biology, a group of tissues in a living organism that have been adapted to perform a specific function.
www.britannica.com/science/organ-biology
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What is a living organism?
Living organisms are classified into groups depending on their structure and characteristics. This system was developed in the eighteenth century by Carl Linnaeus.
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Apr 19, 2018 · All living organisms -- from small to big -- share characteristics that separate them from the divisions in nature that do not exhibit life, like rocks or soil. Living creatures have cells, DNA, the ability to convert food into energy, grow, reproduce, respire and move.
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The taxonomic classification system uses a hierarchical model to organize living organisms into increasingly specific categories. The common dog, Canis lupus familiaris , is a subspecies of Canis lupus , which also includes the wolf and dingo.
Unit test. Level up on all the skills in this unit and collect up to 1,200 Mastery points! Start Unit test. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
In this course, you will learn to identify different kinds of living things and how to classify them. Most of the six activities in this unit will take you only five to ten minutes to complete. This unit is divided into five sections: Characteristics of living organisms. Classification of living organisms.
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May 28, 2019 · An organism is an individual life form with characteristics that set it apart from rocks, minerals or viruses. An organism by definition must have the capacity to metabolize, grow bigger, react to stimuli, reproduce and maintain homeostasis. An incalculable number of organisms inhabit planet Earth.
Cells are the smallest unit that can carry out all of the functions of life. These functions include taking up nutrients and water, getting rid of waste, getting and using energy, and interacting with the environment. Unicellular organisms are made up of one cell. Multicellular organisms are made up of many cells.