1.1 MRS GREN

• • Movement: an action by an organism or part of an organism causing a change of position or place
• • Respiration: the chemical reactions in cells that break down nutrient molecules and release energy for metabolism
• • Sensitivity: the ability to detect and respond to changes in the internal or external environment
• • Growth: a permanent increase in size and dry mass by an increase in cell number, size or both
• Reproduction: the production of new individuals from existing ones, either sexually (gametes) or asexually (vegetative)
• Nutrition: the taking in of food and its conversion into materials needed for growth and maintenance of life
• Excretion: the removal of waste products from the body