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1.Who are animals?

ответ :Living organisms are a traditionally distinguished category of organisms, currently considered as a biological kingdom. Animals are the main object of the study of zoology.

2.What are they for?

ответ :They provide people with food and raw materials, help in the economy and treatment of diseases, protect against ill-wishers and simply please the eye. Thanks to animals, human evolution has occurred.

3. How many animals can there be in the world?

ответ :Currently (Zhang, 2013), scientists have described more than 1.6 million species of animals (including more than 133 thousand fossil species; Zhang, 2013), most of which are arthropods (more than 1.3 million species, 78%), mollusks (more than 118 thousand species) and vertebrates (more than 42 thousand species).

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2. 1. She has been to hospital since this morning

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3. 1. Joe has been, ...for

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4. Ben has not seen his uncle for ...

5. I haven't been very well since Monday.

6. My brother has had his...for ...

7. They have lived here since they...

8. It hasn't had anything to eat for days.

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7.  has written, since

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