Evolutionary trends in animals include the development of specialized tissues, germ layers, body symmetry, a head (cephalization), and body cavity formation.
Evolutionary trends in animals include the development of specialized tissues, germ layers, body symmetry, a head (cephalization), and body cavity formation.
| Front | Evolutionary Trends in Animals |
|---|---|
| Back | - specialized tissues - germ layers - body symmetry - development of head - body cavity formation |
Tags: chapter_12
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