1. Biology:The Living Environment
Mr. Saccone

2. Chapter 1
The Concept of Life
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3. Biology- The study of living things
Biology- The study of living things. Bio – Life, living ology- The study of
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4. Living things are known as organisms.
(I) All living organisms carry on the following life functions:
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5. Nutrition
The activities by which living things obtain food and process it for growth and repair of their body cells.
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6. Nutrition
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7. The absorption and circulation of materials within an organism.
Transport
The absorption and circulation of materials within an organism.
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8. RESPIRATION IS NOT BREATHING!
The process by which energy stored in food is converted to a form that can be used by the organism.
RESPIRATION IS NOT BREATHING!
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9. Respiration The production of energy!
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10. Excretion The removal of cellular wastes from an organism.
*egestion- removal of undigested materials (feces).
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11. Synthesis
The process by which large molecules are built from smaller molecules.
Ex: = 2
small small = large
Amino Acid + Amino Acid = Protein
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12. Regulation
Involves the control and coordination of all activities of an organism.
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13. Involves the increase in cell number and cell size of an organism.
Growth
Involves the increase in cell number and cell size of an organism.
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14. The production of new individuals. *survival of the species
Reproduction
The production of new individuals.
*survival of the species
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15. (II) Metabolism
All the chemical activities that take place in an organism to keep it alive.
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16. The maintenance of a stable internal environment.
(III) Homeostasis
The maintenance of a
stable internal environment.
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