B1 Characteristics of Life Flashcards
Define movement.
An action by an organism or part of an organism causing a change of position or place.
Define respiration.
The chemical reactions in cells that break down nutrient molecules and release energy for metabolism.
Define sensitivity.
The ability to detect or sense stimuli in the internal or external environment and respond to changes in the environment.
Define growth.
A permanent increase in size and dry mass by an increase in cell number or cell size or both.
Define reproduction.
The processes that make more of the same kind of organism.
Define excretion.
Removal from organisms of the waste products of metabolism (chemical reactions in cells including respiration), toxic materials, and substances in excess of requirements.
Define nutrition.
Taking in of materials for energy, growth and development; plants require light, carbon dioxide, water and ions; animals need organic compounds and ions and usually need water.
What are the 7 life process of all living things?
Movement Respiration Sensitivity Growth Reproduction Excretion Nutrition
