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Sintetiza. El disfrute desigual de los recursos del planeta
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Recuerda lo que has trabajado en este apartado y contesta: ¿Hasta qué punto la localización de los recursos naturales determina la distribución de la población? ¿Y hasta qué punto se garantiza…
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Introducción - Los fenómenos migratorios
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La característica más destacada de la población es su dinamismo: diversos factores, como la natalidad, la mortalidad y las migraciones han influido en su evolución a lo largo de la historia. Pero en…
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Check. The transport of substances in plants
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Remember what you have studied in this section and answer the questions: Talk to a classmate about sap: Draw a diagram to show the plant parts and system involved in transporting water from the soil up…
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Summaries - Animal nutrition
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1. Feeding and digestion in animals Animals are heterotrophic; they need to find food and transform it to get nutrients. These substances provide energy and materials the animal needs to grow, make new…
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Check. Test yourself
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Remember what you have studied in this section and answer the questions: In what way are the feeding characteristics of a coelenterate and a planarian similar? What type of circulatory system do the…
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Remember - Heat and temperature
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Heat or thermal energy is the energy that a body transfers to a colder body at a certain temperature. Thermal energy is involved in many processes in our daily life, like cooking food, making a hot…
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Calculate. The speed of light
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Calculate the distance in km that light travels in 20 s. d = km Calculate the distance in km that light travels in methacrylate in 20 s d = km If sunlight takes 8 minutes to reach Earth through the…
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Complete. Light and shade
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Complete the text. Light is a that propagates in a line in all directions. We can experiment with the production of using a light source and an extended light source. In a point light source, we see…
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Check. The Enlightenment
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Remember what you have studied in this section and answer the questions: What Enlightenment principles are associated with Montesquieu, Rousseau and Voltaire? Discuss the social and political reforms…
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Summarise. The Industrial Revolution
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Summarise the text. Write paragraph headings. Between 1780 and 1850 there was a major transformation of goods production systems: the Industrial Revolution. It started in Britain, and then spread to…
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