POLYCHAETES AND THE EVOLUTION OF SPECIES

Polychaetes and THE EVOLUTION OF SPECIES
The following was copied from my lesson in the course of biology at the Universidad Metropolitana de Santos. The theory of evolution is so vague, and based on many assumptions, the more I study biology, the more I become a creationist. (Valdemir Mota de Menezes, the Scribe)
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Origin of polychaetes

The relationship between the three major classes of worms is just as clear oligochaets the natural form a group, from which the Hirudineas formed a unified and specialized branch. The origin of Polychaetes is uncertain. Previously, it was believed that the "Arquianelídeos" a set of small annelids and therefore simple, were the ancestors; But now we know who are not united or are primitive:

they are aberrant polychaetes. The relationships between the various orders worms are very difficult to determine, of course, the protection of pits and pipes was often acquired separately by different ancestors. Opinions about the fact that oligochaetes have arisen within the polychaetes or directly from a common ancestral annelid excavator are discordant. The view taken will depend on the one hand, the evolution of a coelom metamerism and is regarded primarily as a free-swimming aid as a means of locomotion, or another, as an adaptation that improves the ability to dig. It is not known the likely size of the ancestral annelid