Characteristics Of Life Flashcards
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
Defined as 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 in which organisms obtain and use food
Cell
A basic unit of life
Tissue
Group of similar cells with a similar function
Organ
A group of similar tissues with a similar function
Organ system
Group of organs which carry out a range of functions
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
