The Variety of Life

Characteristics and Classification (1)

Characteristics of living organisms (RINGER):❊ Respire❊ Irritability / Sensitivity❊ Nutrition❊ Growth❊ Excretion❊ Reproduction

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Characteristics and Classification (2)

Respiration:❊ The chemical reactions that break down nutrient molecules in living cells to release energy.❊ Many organisms have gaseous exchange systems that supply their cells with oxygen from their environment

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Rubrica: : Respiratory system in a human body

Characteristics and Classification (3)

Irritability / Sensitivity:❊ The ability to detect changes in the environment (i.e. stimuli) and respond to them❊ These responses involve the movement of muscles and limbs

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Rubrica: : Most sensitive parts of your body

Characteristics and Classification (4)

Nutrition:❊ The intake of nutrients (food) - this provides raw materials or energy fro growth, tissue repair and reproduction❊ Plants make their own food by photosynthesis

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Rubrica: : Foods included in your general diet

Characteristics and Classification (5)

Growth:❊ The process by which an organism changes in size and in form.❊ Growth is a permanent increase in size and dry mass, and results from an increase in cell number or cell size or both

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Rubrica: : Growth of baby into a toddler

Characteristics and Classification (6)

Excretion:❊ The removal of toxic materials, the waste products of metabolism inside your body

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