Recursos educativos avian flu página 3

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Viruses are living things
EduBook Organización
2023 visitas
Viruses are very tiny living things. They are smaller than cells. All viruses are parasites. When they meet a cell, they enter it and produce more viruses, killing the cell. They can cause many…
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Viruses
EduBook Organización
4187 visitas
Viruses are not living things because they are not made up of cells and they lack the functions characteristic of most living things. Viruses are only made up of genetic material surrounded by a…
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Health
EduBook Organización
3484 visitas
Health and illness We say we are in good health when our body works well and we are not ill. Sometimes we get ill. When we are ill, we have symptoms, like a fever, headache or stomach pains. We say that…
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Comprehension check (KET)
EduBook Organización
2910 visitas
Look again at Chapter Three. Are sentences ‘Right’ or ‘Wrong’? If there is not enough information to answer ‘Right’ or ‘Wrong’ , choose ‘Doesn’t say’. The barley made Robinson…
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Video: What is AIDS
Tiching explorer Organización
5108 visitas
AIDS is the most dangerous sexually transmitted disease. In this 3 minute video we have a brief look at what AIDS is, how the HIV virus is transmitted, and what we can do to protect ourselves against…
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Recursos educativos