Interaction between organisms and their environment, food chains, and biosphere conservation. Where to Find Solutions (GDZ)
Reproduction, individual development (ontogeny), and the basics of genetics and breeding. gdz k rabochei tetradi po biologii za9 klass pasechnik
Another popular resource for checking complex tasks like tables and diagrams. Interaction between organisms and their environment
The chemical composition of the cell (proteins, lipids, carbohydrates), cell structure, and the function of various organelles. individual development (ontogeny)