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La ganadería en el mundo
EduBook Organización
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5.1. La ganadería La ganadería consiste en la cría de animales para obtener una serie de productos como carne, leche, huevos, cuero, lana, etc. Los animales también se emplean como fuerza de trabajo…
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Sintetiza. Clasificación de las industrias. La empresa industrial
EduBook Organización
- 3085 visitas
Recuerda lo que has trabajado en este apartado y contesta: ¿Cuáles son las diferencias entre la industria pesada y la industria ligera? ¿Qué es una empresa industrial? ¿Cómo se clasifican según…
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Final Autoevaluation 1.07 - Plant nutrition
EduBook Organización
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Answer true and false: The raw sap consists of water and mineral salts. The xylem is a tissue shaped like hollow tubes and is made up of dead cells. The elaborated sap is absorbed through the root…
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Check. The removal of cell waste
EduBook Organización
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Remember what you have studied in this section and answer the questions: Ask a classmate to define the key words. Which animals have excretory organs and which animals do not? Present your information…
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Reproduction in living things
EduBook Organización
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1.1. Types of reproduction Reproduction in living things ensures that the species will continue. There are two basic types of reproduction: Sexual reproduction takes place when sex cells, known as…
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The natural environment
EduBook Organización
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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 - Matter and its properties
EduBook Organización
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1. Matter Matter is anything which has mass and volume. For example, the Sun, the Earth, and human beings are all made up of matter. A physical system is any part of the Universe which is made up of…
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Think about it. Forms of energy
EduBook Organización
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Remember what you have studied in this section and answer the questions: Complete the sentences to explain how energy is converted: The electrical energy in a radiator is converted into... The…
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Heat and temperature
EduBook Organización
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2.1. What is temperature? When a body receives energy in the form of heat, it stores it in the form of internal energy and its particles move more quickly. Temperature is an indicator of the speed of a…
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Learn. Some optical instruments - Waves. Light and sound
EduBook Organización
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Some optical instruments Most optical instruments, like microscopes or telescopes, consist of lenses, mirrors and prisms. Lenses Lenses are disc-shaped, and one or both sides are curved. They are made…