The correct answer is Three germ layers. The feature, three germ layers, is only shown by higher invertebrates, as compared to lower invertebrates. The formation of the three germ layers is caused by the morphogenetic movement called Gastrulation.
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Answer:
a humongulous is simular in related organisims and analogous is simular in unrelated organisims
Explanation: i have already learned this
D. Watershed - a watershed is the area in which runoff, rivers, and streams run into a larger body of water
