Characteristics of living organisms

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What this unit covers

• Characteristics of living organisms: Explain the features that define living organisms, including: (a) movement as an action that changes the position of an organism or its parts, (b) respiration as the chemical processes in cells that decompose nutrients to release energy for metabolic activities, (c) sensitivity as the capacity to notice and react to changes in the internal or external surroundings, (d) growth as a lasting increase in size and dry mass, (e) reproduction as the mechanisms that produce more individuals of the same species, (f) excretion as the elimination of metabolic waste products and excess substances, and (g) nutrition as the intake of materials necessary for life.