KEGS Biology Blog


Thursday 15th November Section 3
November 15, 2012, 9:44 am
Filed under: Uncategorized

Adaptations

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An adaptation is:
A characteristic of an organism which aids it in survival in its habitat
Adaptations occur through evolution this is through the process of random mutations which, when beneficial increase the organisms chance of survival and reproduction. These characteristics are then passed on through generations and progressively become more pronounced and may lead to a new species.
There are three main categories which an adaptation may fall under:
Structural – Is part of the organisms body and how it functions on the outside, this includes fur or blubber to keep and animal warm or as small as cross-linking between polymers in yeast to give the cell rigidity. Structural can also be known as anatomy.
Physiological – refers to the inner working of the organism sometimes known as the biochemistry of the organism and could be temperature regulation or the aerobic respiration of an organism
Behavioral – How the organism actually acts under certain conditions and influences, such as being nocturnal or forming spores under certain conditions

a good website about adaptions is the BBC nature one posted below :
http://www.bbc.co.uk/nature/adaptations

Comment by jaimieclifford




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