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Organisation and functions of living things
EduBook Organización
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4.1. Organisation of living things A multicellular organism is made up of millions of very different cells that specialise in certain functions. For example, neurons specialise in transmitting nerve…
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Look after your ears
EduBook Organización
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The parts of the ear Our sense of hearing is in our ears. We use our ears to hear different sounds. We can hear loud or quiet sounds. We can also hear if a sound is near or far. Our ears are divided…
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Breathing (I)
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The respiratory system The respiratory system is the group of organs through which we are able to inhale oxygen, and exhale carbon dioxide. It consists of the respiratory tract and the lungs: The…
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Unit 9: The first civilisations: Mesopotamia and Egypt
EduBook Organización
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Adobe (n): a mixture of clay and straw used to make bricks for building. afterlife (n): the continuation of life after death in, for example, a heaven or underworld. chamber (n): a large underground or…
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Free people and slaves
EduBook Organización
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In the Roman Empire, some people were free, but many were slaves. Slaves had no freedom. They were owned by their masters. Slaves worked on farms and in rich peoples' houses as servants. They had to…
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Unit 3: The Universe and our Solar System
EduBook Organización
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Asteroid (n): a small irregular body of rock or metal that orbits around the Sun. asteroid belt (n): the space between Mars and Jupiter where most asteroids are found. Big Bang theory (n): the theory…
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Interaction in animals
EduBook Organización
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1.1. What is interaction? Interaction is a function that allows living things to perceive information from the outside or from inside the organism and respond to changes that take place. 1.2. Stimulus…
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Complete. The lord's taxes
EduBook Organización
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Complete these sentences about the lord's taxes with the missing words: The were forced to pay the lord taxes in the form of a part of the from the land they worked. Once a year, they were also…
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Final self-evaluation 10 - Energy and industry
EduBook Organización
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Complete the following sentences with the missing words: The main elements of the industrial process are the , investment, , the of the company and . To make an industrial product, companies need raw…
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