Биология. 9 класс. Занятие №5
Тема: Химический состав и строение клетки.
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![ПО ИТОГУ НАУКА или НАЙКА? Наёмный Командир [NAUKA]. 1585 Эло Рейтинг](https://sun9-20.userapi.com/eFAsF8w8oFS9KkiSS180uAoFdXd1yg4kGYkeJg/teeGeuiznPY.jpg)
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