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True / false. The Earth
EduBook Organización
- 5518 visitas
Answer true or false: The Earth is flattened at the poles. From space, the Earth looks blue because of the oxygen in the atmosphere. The equator is an imaginary line that divides the Earth into east and…
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Air and the atmosphere
EduBook Organización
- 5318 visitas
What is air? Air is a mixture of gases. It forms the atmosphere around us. Air is made up of two main gases: nitrogen and oxygen. It also has other gases, including water vapour and carbon dioxide.…
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End-of-unit evaluation - Animal nutrition
EduBook Organización
- 1 lo usan
- 4957 visitas
Animals are heterotrophic organisms; they cannot make the organic material they need to eat. They can get organic material from other animals and from plants. Plants are the only living things that can…
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Investigate - Animal nutrition
EduBook Organización
- 4973 visitas
Animals are heterotrophic organisms; they cannot make the organic material they need to eat. They can get organic material from other animals and from plants. Plants are the only living things that can…
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Self-assessment T8 10 - Nutrition, breathing and circulation
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Are these sentences true or false? The urinary system consists of the kidneys and the ureters. The circulatory system transports nutrients to all the cells in our body. The kidneys extract water and…
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Remember - Animal nutrition
EduBook Organización
- 4562 visitas
Animals are heterotrophic organisms; they cannot make the organic material they need to eat. They can get organic material from other animals and from plants. Plants are the only living things that can…
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Introduction - Animal nutrition
EduBook Organización
- 4467 visitas
Animals are heterotrophic organisms; they cannot make the organic material they need to eat. They can get organic material from other animals and from plants. Plants are the only living things that can…
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Planet Earth
EduBook Organización
- 4345 visitas
2.1. The blue planet From space, the Earth looks blue. This is because of the oxygen in the atmosphere and the abundance of seas and oceans. The Earth is often given the name the Blue Planet. The Earth…
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Test the properties of air
EduBook Organización
- 3922 visitas
What is air? Air is a mixture of gases. It forms the atmosphere around us. Air is made up of two main gases: nitrogen and oxygen. It also has other gases, including water vapour and carbon dioxide.…
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Answer. Human reproduction
EduBook Organización
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Remember what you have studied in this section and answer: What is a zygote? How is it formed? What is fertilisation? What route do sperm follow from when they leave the testicles to the moment they…