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Summaries - Animal nutrition
EduBook Organización
- 3674 visitas
1. Feeding and digestion in animals Animals are heterotrophic; they need to find food and transform it to get nutrients. These substances provide energy and materials the animal needs to grow, make new…
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The secondary sector: industry and construction
EduBook Organización
- 3593 visitas
Industry The industrial sector in Spain includes: The transformation of raw materials into primary products such as steel and concrete. The manufacture of capital goods. These are machines and tools…
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Feeding and digestion in animals
EduBook Organización
- 3536 visitas
1.1. How do animals feed? Animals are heterotrophic; they need to find food and transform it to get nutrients. These substances provide energy and materials the animal needs to grow, make new tissues…
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The natural environment
EduBook Organización
- 3446 visitas
1.1. The energy of the sun and life The ecosphere is a hypothetical zone existing around any star where the temperature allows life to exist. The conditions which make it possible for life to exist on…
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Summaries - Science and technology
EduBook Organización
- 3412 visitas
1. Science and technology in today's world During the 20th century and the beginning of the 21st century, people made great advances which have improved the quality of life for people all over the…
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End-of-unit activities - Nutrition, breathing and circulation
EduBook Organización
- 3399 visitas
Our body needs nutrients and oxygen to live and grow. We obtain nutrients from food, and oxygen from the air. In our body, the digestive system gives us the nutrients that we need, and the respiratory…
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How we breathe in places with no air
EduBook Organización
- 3370 visitas
We need air to breathe Humans and other animals that live on land need air to live. When we breathe, we take oxygen from the air. With this oxygen and with the food we eat, our body has the energy it…
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End-of-unit evaluation - Nutrition, breathing and circulation
EduBook Organización
- 3302 visitas
Our body needs nutrients and oxygen to live and grow. We obtain nutrients from food, and oxygen from the air. In our body, the digestive system gives us the nutrients that we need, and the respiratory…
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What is sound?
Maria Pallarés Docente
- 1 lo usan
- 4587 visitas
What is sound? Sound is a form of energy, just like electricity and light. Sound is made when air molecules vibrate and move in a pattern called waves, or sound waves. Think of when you clap your hands,…
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