Characteristics Of Life Flashcards
What is life?
Life is defined as the possession of all the following characteristics:
- organised
- requiring nutrition and excretion
- capable of responding and reproducing
What is an organisation?
An organisation means that living things are composed of cells, tissues, organs and organ systems
What is nutrition?
Nutrition is the way organisms obtain and use food
What is the basic source for all nutrition?
The sun
What is excretion?
Excretion is the removal of waste products of metabolism from the body
What is response?
Response is the way in which living things react to changes (called stimuli) in their environment or surroundings
What is reproduction?
Reproduction is the production of new individuals
What is continuity of life?
Continuity of life means that living things arise from other living things of the same type. Also known as biogenesis
What is metabolism?
Metabolism is the sum of all chemical reactions in an organism.
