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Thursday 15 November 2012

Understanding Why Humans Need to Defecate

Humans excrete and defecate to get rid of waste materials from their bodies.  We excrete urine and sweat. They contain water.  When we defecate, our body get rid of undigested food or waste materials called faeces.  

Why do we get rid of these waste materials?
We get rid of them so that they would not harm our health.

5 comments:

Low Sau Ying said...

Well done, keep it up.

Unknown said...

Good job!

Unknown said...

Thanks for following my blog.

Unknown said...

Thank you for sharing!

Unknown said...

Same to you. Thanks for following my blog.

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