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Complete. The bloodstream
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Complete this text with the correct words: In pulmonary circulation, blood passes from the right ventricle to the lungs through the artery. In the lungs, the blood expels carbon dioxide and collects .…
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Complete. Blood circulation and the heart
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Complete these sentences with the correct words: The heart contains four . The allow blood to pass from the atrium to the ventricle, but not in the opposite direction. The human bloodstream follows a…
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Urination
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The urinary system The urinary system is the group of organs that expels waste products from our body. The blood collects these waste products from the cells. The urinary system consists of the kidneys,…
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True / False. How do muscles move?
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Are these sentences true or false? We only use our muscles to produce movement. When we produce movement or force, our muscles become shorter and thicker because they contract. When the muscle…
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Self-assessment T10 10 - Machines and structures
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Are these sentences true or false? The structure of a building must be stable and resistant. The structure of many buildings consists of a system of girders, beams and pillars. The beams form the base…
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Answer. Light and sound
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Answer the following questions in your notebook: What is light? Which of our senses perceives it? What does our image look like in a mirror? What do we use a magnifying glass for? Why do objects have…
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Autoavaliación T6 05 - No tempo dos romanos
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Completa o texto sobre a conquista romana da Península Ibérica coas palabras ou números adecuados: A conquista romana da Península durou máis de anos e desenvolveuse en fases. Primeiro conquistaron…
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Autoavaliación T10 03 - Os animais
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Da seguinte listaxe de animais, indica cales son celentéreos e cales non: ourizos de mar: medusas: estrelamares: corais: anémonas de mar: esponxas:
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Completa. As plantas
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Completa este texto coas seguintes palabras: algas – pluricelulares – mofos ou carrizas – flores – luz – raíces – auga – fieitos – osíxeno – respiraren As plantas son un dos tres…
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Ordena. O aparello reprodutor masculino
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Ordena os órganos polos que pasa un espermatozoide dende que se fabrica ata que se une cun óvulo: uretra vaxina testículos útero trompas de Falopio
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