Revision Concepts
Organism (Microorganism, plant and animals) who posses life is living.
Life is a complex organisation expressing itself through chemical reactions and exhibit characteristics of living organisms.
Characteristics of Living Organisms : Growth, reproduction, metabolism, cellular organisation, consciousness (abi8lity to sense environment), selfreplicating and self regualation.
Reproduction and growth are NOT defining properties.
Metabolism, cellular organization and consciousness are defining properties.
Living organisms are self-replicating, evolving and self-regulating interactive and systems capable of responding to external stimuli.
Biodiversity: Term used to refer to the variety of microorganisms, plant and animals on earth.
Need for classification : To organise the vast number of microorganisms, plants and animals into categories that could be named, remembered, studied and understood.