Difference between a protosomate animal and a deuterostomate

What’s the difference between a protosomate animal and a deuterostomate one?

My answer is Protosomate is a taxon of animal and deuterostome is a superphylum of animal. In protosomate development, the first opening in development, the blastopore, becomes its mouth, and the blastopore becomes the animal’s anus in deuterostomate development.

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