The embryo of an animal forms a blastopore that deepens to form the digestive tract. This blastopore then develops into a mouth. In which category should this animal be classified?
This animal should be classified in PROTOSOME. In protosomes, the mouth is developed from the blastophores. This category includes Annelidia, Mollusca, Athropoda etc. They have a spiral cleavage pattern, and their mesoderm arises from the mesentoblast