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Analyse. Cell cultures
EduBook Organización
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Cell cultures Cell cultures consist of cultivating cells, both animal and plant, in the laboratory. We do this to obtain cell tissue. The tissues obtained from animal cells can repair or substitute…
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Check. Spanish society in the 19th century
EduBook Organización
- 3356 visitas
Remember what you have studied in this section and answer the questions: Who made up the ruling classes in the 19th century? What economic activities did they engage in? How had both changed with…
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True / false. The beginnings of the Greek world
EduBook Organización
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Which of the following statements are true or false?: The different peoples who would later become the Greeks arrived from the south between 2000 and 1200 B.C. People in the Greek world shared the same…
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Final Autoevaluation 4.08 - Animal reproduction
EduBook Organización
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Complete the text about reproduction in mammals and birds. embryo – viviparous – young – milk – egg – mammary glands – oviparous – placenta – nutritious Both mammals and birds tend to…
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Changes in matter
EduBook Organización
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6.1. Changes in matter Matter is not immutable, as both the form it adopts and its composition can change. Physical changes A physical change takes place when the nature of matter is unchanged, this is…
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Answer true or false
EduBook Organización
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Answer true or false: The press is a form of personal communication that allows us to talk to a person in a different place. → If you want to send someone an email, you both need an email address.…
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19th century art
EduBook Organización
- 1 lo usan
- 2534 visitas
Art: Goya The Aragonese painter Francisco de Goya is considered one of the greatest Spanish artists. He lived under both absolute monarchy and the liberal revolutions. His early works showed festive…
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Renewable energy sources
EduBook Organización
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Energy sources that will not run out are called renewable energy sources. Some examples are the Sun, water and wind. The energy that we obtain from renewable sources is called clean energy because it…
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Water purification and treatment
EduBook Organización
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Water goes through a series of stages both before and after it is used for consumption. Water collected from a river or lake is purified for human consumption. After human use, contaminated water and…
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Phonetics Focus
Cambridge English Online Organización
- 2 lo usan
- 6015 visitas
In this website you'll find a very clear chart with every English sound, both consonants and vowels. If you click on the symbols you'll hear the correct pronunciation. After studying them, you can…
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