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Tuesday 1 October 2013

A Taste Of Biology

1. Living Things
Biology is the study of living things. Living things are a group of objects which have many common characteristics. All living things have life, which means they can carry out activities and other things. All living things need oxygen to thrive. Living things include plants, fish and us. Living things move, grow, react and reproduce from energy which they can get from food sources around them.

2.Classification Of Living Things
Living things are usually divided into two groups - plants and animals. The differences between plants and animals can be seen in three main areas - their movement, whether they make their own food, and the structure of their cells.

Movement- The movement of most plants is slow. They are fixed in one place by their roots. Plants have a process called 'photosynthesis', which means that they can take in carbon dioxide and release them into the air as oxygen. Animals have specialised parts such as legs, wings, fins, tails and small hairs which are used just for movement. Some move slowly and some can move rapidly.

Cell Structure- All living things are made of tiny cells. Some living things consist of one single cell, while others, such as humans consist of millions. Plant cells are usually box shaped and contain more liquid.



References: http://en.wikipedia.org/wiki/Biology

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