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Learn. Spontaneous generation - Animal reproduction
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In ancient times, many people believed that living things could be created spontaneously from decomposing material. Aristotle stated that flies and mosquitoes were produced spontaneously from mud in…
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Analyse. A text
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Polyembryony Polyembryony is a type of sexual reproduction in which an embryo fragments into several identical embryos. They each develop independently. The young of each litter are of the same sex, as…
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True or false. States of matter
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Answer true or false: The particles are less tightly bound together in a solid. The particles in a gas move very quickly. All systems are composed of material particles. Liquids are compressed and…
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Calculate. Pressure
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Calculate the pressure exerted on snow by the feet of a man with a mass of 81 kg if you know that the total surface area of the soles of his boots is 0,6 m2? Note: g = 9,8 m/s2. P = Pa
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Choose. Upthrust and buoyancy
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Choose the correct answer: What equals the upward thrust experienced by a submerged object in a liquid? What is the apparent weight of an object? What happens if the weight is less than the upward…
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Final Autoevaluation T10 01 - Obtaining and using energy
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Choose the correct answer: What type of energy is produced when a girl is moving on roller skate? How is this energy transformed when she goes up hill? When a an elastic bow shoots an arrow to the…
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Final self-evaluation T02 07 - Liberal revolutions and nationalist movem...
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Complete the sentences about democracy with the missing words: liberal – collective – sovereignty – suffrage – sovereignty – democrats – democratic – suffrage Around 1848, the prevailing…
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The great colonial empires
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3.1. Dividing up the world The major European powers gained control of almost all of Africa and Asia, most of the islands in the Pacific Ocean and Oceania, and large parts of North America. Africa was…
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The Sepoy Rebellion
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In 1857, the Sepoys rebelled against the British when they were forced to oil their weapons using grease from cows and pigs, which was an offence against the Muslim and Hindu religions. The rebellion…
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Choose. Artists of the 20th century
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Match each artist with the correct artistic discipline: S. Calatrava Picasso Le Corbusier A. Warhol e. Kandisky E. Chillida Miquel Barceló Mies Van der Rohe Calder S. Dalí P. Gargallo J. Miró A. Tàpies