characteristics of living things (organisms). characteristics of living things are made up of cells...
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CHARACTERISTICS OF LIVING THINGS
(Organisms)
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CHARACTERISTICS OF LIVING THINGS
Are made up of cells
Unicellular – organisms that are made of only one cell
Multicellular – organisms that are made of more than one cell
Colonial – unicellular organisms that live in a group
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CHARACTERISTICS OF LIVING THINGS
Reproduce to produce new organisms
Sexual reproduction – two cells from different individuals combine to form the first cells of a
new organism
Asexual reproduction – all or part of the organism is used to make a new organism
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CHARACTERISTICS OF LIVING THINGS
Growth, Development and Aging
Growth – some cells get larger and other new cells are added
Development – cells and body parts becomespecialized for certain jobs
Aging – cells and body parts become damaged and cannot be repaired
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CHARACTERISTICS OF LIVING THINGS
Obtain and Use Energy from Environment
Anabolism – process of making complex substances from simpler substances
Catabolism – breaking down complex substances into simpler substances
Metabolism – sum of all of the anabolism and catabolism of an organism
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CHARACTERISTICS OF LIVING THINGS
Obtain and Use Energy from Environment
Autotroph – organism that can make its own food from it’s environment
Heterotroph – organism that has to obtain its energy from another organism
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CHARACTERISTICS OF LIVING THINGS
Respond to the Environment
Stimulus – anything in the environment that causes a reaction from an organism
Reflex – automatic response to a stimulus
Behavior – learned or inherited response to a stimulus
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CHARACTERISTICS OF LIVING THINGS
Respond to the Environment (continued)
Homeostasis – an organism’s response to the environment that keep conditions suitable for life
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When your body gets too warm due to
activity or stress,you will sweat
to cool it down.