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Think about it. The need for energy
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Remember what you have studied in this section and answer the questions: Explain how plants use the energy that they receive from the Sun. In the past, what did humans use different types of mill for?…
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Answer. Asexual reproduction
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Remember what you have studied in this section and answer: How many individuals are needed for asexual reproduction? Name two types of asexual reproduction. What is the main difference between sexual…
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Self-evaluation 7 - Prehistory
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Complete these sentences on Neolithic art and culture with the missing words: The first religious beliefs probably came from the need to explain phenomena. The first cave art, some years ago, reproduced…
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Answer true or false
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Answer true or false: Bones are the soft parts of the human body. The skeleton is made up of all the bones in our body. Our senses help us interact with the world around us. The legs are the upper…
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Summaries - The Spanish economy
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1. Agriculture and livestock farming in Spain The primary sector used to be Spain's most important economic sector. Today, just 4.2% of the active population in Spain works in the primary sector.…
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End-of-unit activities - The Animal Kingdom (I). Invertebrates
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Today our planet is home to a great variety of organisms. This is the result of an evolutionary process that began some 3.5 billion years ago. Invertebrates are a very diverse group of animals that do…
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Spain's climates and landscapes
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7.1. The wide variety of climates in Spain The majority of Spanish territory is on the Iberian Peninsula. On the Peninsula, we can find the three different types of temperate climates as well as the…
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Democracy in Athens
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3.1. Democratic institutions In the 5th century BC, Athens became a democracy. The citizens participated in politics and were protected by the law. There were four main democratic institutions in…
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Check. Rome's conquest of the Mediterranean
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Review what you have studied and answer the questions: What were the main reasons for the superiority of the Roman army? What great power did Rome have to defeat to achieve dominance of the…
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True/false. Types of agriculture
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Are the following statements true or false?: The aim of subsistence agriculture is to sell the crops produced. The main aim of commercial agriculture is to increase sales and reduce costs. Plantation…
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