The animals in which coelom is formed due to the splitting of the mesoderm are known as which of the following?

Explanation

Option D is correct since in Schizocoelus organisms, coelom develops by splitting of the mesodermal embryonic tissue. Option A is incorrect because Pseudocoelom is one of the three types of Coelom not originated by the mesodermal epithelium. Option B is incorrect because, in Enteroceolus organisms, the coelom is formed by the pouches formed by the digestive tract. Option C is incorrect because Amphicoelous is a term used for vertebrae of certain fishes which is concave on both sides.