Characteristics of Living Organisms - MRS GREN

Characteristics of Living Organisms - MRS GREN

1. Movement

   • action by an organism (or part of) causing a change of position or place

2. Respiration

   • chemical reactions that break down nutrient molecules in living cells to release energy

3. Sensitivity

   • ability to detect/sense changes in the environment (stimuli) and to make responses

4. Growth

   • permanent increase in size and dry mass by an increase in cell number or cell size or both

5. Reproduction

   • processes that make more of the same kind of organism

6. Excretion

   • removal from organisms of:
     • toxic materials
     • waste products of metabolism (chemical reactions in cells during respiration)
     • substances in excess of requirements

7. Nutrition

   • taking in of nutrients which are organic substances and mineral ions, containing raw materials or energy for growth and tissue repairs and absorbing and assimilating them