Recursos educativos avian flu página 3

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Viruses are living things
EduBook Organización
1861 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
3582 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
3224 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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Video: What is AIDS
Tiching explorer Organización
4598 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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Comprehension check (KET)
EduBook Organización
2504 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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Recursos educativos