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Check. What plants need
EduBook Organización
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Remember what you have studied in this section and answer the questions: Define autotroph and heterotroph. Ask a classmate to define these words: nutrition, photosynthesis, carbon dioxide, a root, a…
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The removal of cell waste
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4.1. What does excretion consist of? Cell activity produces waste products like carbon dioxide or urea. These substances are toxic for the organism if they accumulate. The function of excretion is…
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Think about it. The removal of cell waste
EduBook Organización
- 2184 visitas
Remember what you have studied in this section and answer the questions: Why do sponges and coelenterates not need excretory organs? What is the difference between defecation and excretion? Why is more…
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Investigate. The germination of pollen grains
EduBook Organización
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In this practical, you can see the germination process of pollen grains. Under normal conditions this takes place in the flower's stigma. Equipment A flower, a dropper, a microscope, a paintbrush, a…
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Did you know?
EduBook Organización
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In a hermaphrodite animal, the same individual produces eggs and sperm. Cross-fertilisation usually takes place in these animals: two individuals mate and each one behaves like a male and a female at…
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Describe. Steam engine
EduBook Organización
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Explain how a steam engine worked. What energy source did it use? How was the movement transmitted to the loom room?
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Choose. American colonies independence
EduBook Organización
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Choose the correct ending for each sentence: Because they paid taxes to Spain but could not control trade or obtain positions of power... One of the factors that influenced the process of independence…
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Describe. The Realist ideals
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Describe the figures, the context and the theme. How do they all reflect the Realist ideals?
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Check. The German Third Reich
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Remember what you have studied in this section and answer the questions: What were the main characteristics of the Nazi regime in political terms? How did it achieve its aims? Why is the German state of…
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Final self-evaluation T9 03 - Crisis of the democracies and the Second W...
EduBook Organización
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Rewrite the following sentences and correct the mistakes: In Great Britain, advertising campaigns, the hire purchase system and bank loans all prepared the way for mass consumption. President Franklin…