In what direction is the evolution of plants and animals?

The development of wildlife goes from lower to higher forms, from simple to complex and has a progressive character.
Among the main stages of the evolution of the plant world, one can single out land access, the transition from external to internal fertilization, the appearance of seeds and the improvement of their distribution methods; in the evolution of the animal world – the specialization of tissues and organ systems, the emergence of a solid skeleton, the progressive development of the nervous system and the ability to lead a free lifestyle.

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