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task 4 Vertical migration is a pattern of vertical movement that creatures that live in the ocean or in lakes undertake each day. Usually creatures migrate up to the surface at night and return to the bottom of the oceans during the day. Such Vertical migratory behaviors can be due to various environmental factors such as light, temperature, salinity, or predators. Some creatures’ vertical migratory behaviors depend on an underlying biological rhythm such as age or sex.
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| Post dates | Users | rates | Contents |
|---|---|---|---|
| 2014-02-04 | nishith | 80.00 | Check this speaking |
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- task 3 Responding to the university s green initiative campaign the library is going to cut down the electricity consumption by implementing the following procedures First the lighting equipment will be upgraded to energy efficient lighting The work to re 80
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