LC BIOLOGY-The Characteristics of Life

Organism

a living thing

Metabolism

the sum of all the chemical reactions in an organism

Continuity of Life

living things arise from other living things of the same type

Life

the possession of all the following characteristics:

organised, requiring nutrition and excretion, capable of responding and reproducing

Organisation

living things are composed of cells, tissues, organs and organ systems

Nutrition

the way organisms obtain and use food

Excretion

the removal of waste products of metabolism from the body

Response

the way in which all living things react to changes in their environment

Reproduction

the production of new individuals

Sexual Reproduction

involves the union of sex cells

Asexual Reproduction

does not involve the union of sex cells