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Check. Test yourself
EduBook Organización
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Remember what you have studied in this unit and answer the questions: What is the temperature of the matter at the Earth's core? How fast do tectonic plates move? How do two touching plates move in…
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Final self-evaluation 07 - The European Union
EduBook Organización
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Read the sentences and correct them: The Treaty of Rome was signed in 1992 and the EEC became known as the European Union. A single currency was introduced on 1st January 1999. The European Commission…
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Let's learn how to... - Our past
EduBook Organización
- 2392 visitas
Create a photo album of our personal history What do we need? Photos. Blank sheets of paper. Glue. A pen. What do we do? Ask your parents to help you find some photos that tell the story of your life.…
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Restriction Digestion and Gel Electrophoresis of DNA
Tiching explorer Organización
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In sub-cloning biochemists take a gene from a genome and paste it into a plasmid for use in the lab. Restriction endonucleases are used to cut DNA at specific sequences. Electrophoresis is a process in…
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Investigate - Obtaining and using energy
EduBook Organización
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Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…
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The exploitation of natural resources
EduBook Organización
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4.1. The exploitation of resources The rise in population has generated demand for farmland and natural resources. In recent years, we have started to understand the need to conserve the Earth's…
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Look and answer. The salmon
EduBook Organización
- 2223 visitas
Look at the close-up of the salmon ova and sperm. Then answer the questions below. Where does fertilisation take place? Is it external or internal in salmon? What do the ova and sperm look like? How do…
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Interaction in animals
EduBook Organización
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1.1. What is interaction? Interaction is a function that allows living things to perceive information from the outside or from inside the organism and respond to changes that take place. 1.2. Stimulus…
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Unit 1: Plant nutrition
EduBook Organización
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Absorb (v): to take in a substance or energy from the surrounding area. amino acids (n): biomolecules which combine to form proteins. autotroph (n): a living thing which produces its own food. Plants…
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