The deuterostomes differ from protostomes in all of the following respects EXCEPT:
Correct answer: C. Number of germ layers in the developing embryo
- A. Early cleavages of the zygote
- B. Ultimate function of the opening to the archenteron
- C. Number of germ layers in the developing embryo
- D. Embryonic origin of the mouth
- E. embryonic origin of the coelom
Explanation
Both deuterostomes and protostomes have three germ layers. The statement that is NOT true among the given options is: "number of germ layers in the developing embryo" Deuterostomes and protostomes both have three germ layers (ectoderm, mesoderm, and endoderm) in the developing embryo. This is a shared characteristic between these two groups of animals. The distinction between deuterostomes and protostomes lies in other aspects, as listed in the options.
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