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Worms and molluscs
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Worms Worms are animals with long, soft bodies and moist skin. They do not have legs; they move by wriggling. Most worms live in the sea or in fresh water. Some live on land, like earthworms. Some worms…
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Introduction - Looking after my body
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We need to look after our body to have a healthy and happy life. We should eat many different types of food to have a balanced diet. We should also do regular physical exercise. It is also important to…
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Molluscs
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Worms Worms are animals with long, soft bodies and moist skin. They do not have legs; they move by wriggling. Most worms live in the sea or in fresh water. Some live on land, like earthworms. Some worms…
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Think about it. Sexual reproduction in plants
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Remember what you have studied in this section and answer the questions: Why do more evolved plants have a smaller gametophyte? Discuss with a classmate. What is the advantage and disadvantage of having…
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Sponges, cnidarians and echinoderms
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Sponges Sponges are the simplest type of animal that exists. They live in water and are attached to rocks on the seabed. Sponges are often irregular in shape. Their bodies have lots of small holes that…
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True/false. Insects
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Are the following sentences about insects true or false? The mouthparts of insects have adapted so that they can live underwater. Most insects have wings. Insect mouthparts are adapted to the different…
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Remember - Looking after my body
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We need to look after our body to have a healthy and happy life. We should eat many different types of food to have a balanced diet. We should also do regular physical exercise. It is also important to…
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Final self-evaluation 11.05 - The Animal Kingdom (II). Vertebrates
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Complete the text with the missing words: abdominal – teeth – diaphragm – five – limbs – water – pulmonary – fly Mammals have four with toes or fingers that have become adapted to how they…
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Olive trees and olive oil - Work
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Olive tree The olive tree has a wide crown and a thick, short trunk. It grows very slowly and it lives for a long time. The leaves of an olive tree are long and pointed. They are dark green and have…
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On colonialism
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There is another point that we should consider: the humanitarian and civilising effects [of colonisation]. We should all agree that the superior races have rights over the inferior races, because they…
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