Chapt.2 The characteristics of life Flashcards
What is the metabolism?
The sum of all the chemical reactions in an organism
Define and organism.
A living thing
What does the continuity of life mean?
Living things arise from other living things of the same type
Define Life.
Contains all the following characteristics: organised,requiring nutrition and excretion,capable of responding and reproducing
What does organisation mean?
Living things are composed of cells,tisues,organs and organ systems
What is nutrition?
The way organisms obtain and use food
What is excreation?
The removal of waste products of metabolism from the body
What is response?
The way in which all living things react to changes in their enviroment
Define reproduction.
The production of new individuals
Define sexual reproductioon.
Involves the union of sex cells.
Define asexual reproduction.
Does not involve the union of sex cells
