IN THIS UNIT… 1 Levels of organisation 2 Human cells 3 Cellular differentiation 4 Tissues of the human body 5 Organs and systems by life processes Take action In order for a community to lead a healthy life, it is ver y important that ever ybody be familiar with their own body and understand how it functions. Your art galler y will help those who visit it to understand how the body is organised through an attractive visual presentation . SDG 3: "Ensure healthy lives and promote well-being for all at all ages." What are the basic units that make up living things? How do we classify living things by the number of cells they are made up of ? What is the difference between a eukaryotic cell and a prokaryotic cell? WORK WITH THE IMAGE . The photos on the right show the eukaryotic cells of different living things. – Which photo shows an animal cell? What is the other one? – Which cell structures do you recognise? Do you think all the cells in our body are the same? Explain. What three life processes do all living things carry out? Describe them. What type of nutrition and reproduction do humans have? Explain why. Name an organ or a system involved in each of the life processes. L E T ' S G E T S TA R T E D A B 17
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