Explain why the plants and animals of Eurasia are so diverse and the world of Antarctica is so poor.

Each animal and plant has its own optimal conditions, which ensure the work of enzymes and their vital activity. Antarctica has harsh conditions, the ambient temperature is very low and only a few plants have adapted to the fact that the body fluid does not freeze. It is also difficult for animals, because in such conditions there are few food sources, and it is also cold for cold-blooded animals, for example, these conditions are inappropriate with life.