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Arthropods
EduBook Organización
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Characteristics of arthropods Arthropods are the largest animal group on Earth. The most characteristic feature of arthropods is their external skeleton. The articulated exoskeleton (external skeleton)…
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Introduction - The Population of Spain
EduBook Organización
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Spain is not densely populated compared to other European countries. However, in the 20th century the population began to grow. The major changes in Spain's population in recent decades have been…
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Summary of the story
EduBook Organización
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Fill in the gaps with the words from the box, and you will have a summary of the book. Holy Grail pulls church Christmas Day died Galahad magician sword Round Table Mordred (x2) Bors king good return…
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Calculate. Force and pressure
EduBook Organización
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Remember what you have studied in this section and answer the questions: What pressure is exerted on the ground by a person with a mass of 80 kg wearing skis with a total surface area of 0.6 m2? We have…
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Health
EduBook Organización
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Health and illness We say we are in good health when our body works well and we are not ill. Sometimes we get ill. When we are ill, we have symptoms, like a fever, headache or stomach pains. We say that…
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Arthropods (I): characteristics
EduBook Organización
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4.1. Arthropods Arthropods are the most numerous and diverse group of invertebrates. They have adapted to all kinds of environments. The body of an arthropod has three parts: the head, thorax and…
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Video game: Control of the Cell Cycle
Tiching explorer Organización
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In this game we are "Cell division supervisors", inside the cell nucleus, which means we have to steer the mitosis to make sure everything happens in the right order. In the introduction we…
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Check. Women and the French Revolution
EduBook Organización
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Remember what you have studied in this section and answer the questions: Which social reforms introduced during the Revolution benefited women? Make a list of the social classes and professions of the…
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David's house
EduBook Organización
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Houses did not have electricity Clara's great-grandfather lived in a village when he was young. Great-grandfather David's house did not have electricity. People used oil lamps or candles to…
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True/false. Mosses and ferns
EduBook Organización
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Are the following sentences true or false? The difference between mosses and ferns is that the former cannot do photosynthesis. Mosses and ferns are both non-vascular plants. Mosses and ferns are both…
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