The Human Body
There are hundreds/millions of cells in the human body. The
maiority/minority of these cells are as small as a grain of
salt. Tissues are a group of cells that play a particular
role, like covering the mouth.
Different types of tissues combine their traits/
characteristics to form an organ with specific functions.
Organs do not work in isolation, they form a part of a
community system that performs a vital function.
The body transforms food into energy. We must supply
food, oxygen and water to our cells, and also a way to get rid of
the waste. The body systems/organisation take care of these needs.
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