What characterizes biological progress in nature?

The biological progress of a species is the result of its successful struggle for existence.

It is characterized by the following features:

1) The population of a species is increasing.

2) Accordingly, its habitat is also expanding, the population is gradually mastering new territories.

3) New characters appear in the population, which can later develop to such an extent that this population will become a new systematic unit (for example, a subspecies or even a new species).

If all these criteria are met for a population, then it is in a state of biological progress.



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