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Define movement
An action by an organism or part of an organism causing a change in position or place
Define respiration
The chemical reactions in cells that break down nutrient molecules and release energy for metabolism
Define sensitivity
The ability to detect or sense stimuli in the internal or external environment and to make appropriate responses
Define growth
A permanent increase in the size and dry mass by an increase in cell number cell size or both
Define excretion
Removal from organisms of the waste products of metabolism (chemical reactions in the cells including respiration), toxic materials and substances in excess of requirements
Define reproduction
The processes that make more of the same kind of organism
Define nutrition
Taking in of materials for energy, growth and development; plants need light, carbon dioxide and water ions; animals need organic compounds, ions and water
Define species
A group of organisms that can reproduce to produce fertile offspring
-Group of individuals that look alike
Define the binomial system
An internationally agreed system in which the scientific name of an organism is made up of two parts showing the genus and the species
Levels of classification in order:
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