关键词:
动物,
同律分节,
异律分节,
系列重复,
起源,
演化意义
Abstract: The definition of animal
segmentation phenomenon, from its phenomenon and word disorder status
at home and abroad, its origin, type and its evolutionary significance
were summarized. The basic situation and the existing confusion of the
concept of animal segmentation phenomenon were introduced, and the
definition of animal segmentation phenomenon was adjusted to increase
the universal nature of animal segmentation. The origin of segmentation
phenomena was summarized as the origin of the posterior growth zone,
origin of the anterior growth zone and axial simultaneous origin three
types. The definition and the examples of traditional homonomous
segmentation and heteronomous segmentation were introduced in the more
common words. It was clear that the homonomous segmentation and
heteronomous segmentation generally existed in the animal kingdom rather
than limited to annelids, arthropods and chordates or vertebrates. The
serial repetition was added to traditional homonomous segmentation and
heteronomous segmentation. The aim was to make readers have a
comprehensive understanding of the phenomenon of animal segmentation and
provide useful reference for zoology teaching.
Key words:
animal,
homonomous segmentation,
heteronomous segmentation,
serial repetition,
origin,
evolutionary significance