Characteristics and classification of living organisms

1. Characteristics

1.1. Movement

1.1.1. Action by an organism or part of an organism causing a change in position place

1.2. Respiration

1.2.1. The chemical reactions that breakdown nutrient molecules in living cells to release energy for metabolism

1.3. Sensitivity

1.3.1. The ability to detect or sense changes in the environment and to make responses

1.4. Growth

1.4.1. A permanent increase in size and dry mass by an increase in cell number or cell size or even both

1.5. Reproduction

1.5.1. Processes that make more of the same kind of organism

1.6. Excretion

1.6.1. Removal from organisms of toxic materials, the waste products of metabolism and substances in excess of requirements

1.7. Nutrition

1.7.1. Taking in of nutrients which are organic substances and mineral irons, containing raw materials or energy for growth and tissue repair, absorbing and assimilating them