Эволюция биосферы. Урок биологии.
Видеоурок по теме ““Эволюция биосферы“. Хорошо иллюстрированное, доходчивое и простое объяснение опытного учителя.
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3 years ago 00:25:58 66
![ШУМЕРЫ I Секрет первой цивилизации [История с Artifex]](https://sun9-13.userapi.com/XA1DgKXV6ixYlmlGgnQZT53ryglp1-Y1hO59lg/FMTawyEacys.jpg)
2 years ago 00:05:31 70
