Question

Animals which have pseudocoelom are called

Answer 1

Nematodes or roundworms (see Nematoda), rotifers (see Rotifera), acanthocephalans (spiny-headed worms), kinorhynchs (see Kinorhyncha) and nematomorphs or horsehair worms (see Nematomorpha) are pseudocoelomates.

Answer 2

There are many unique biological organs and systems,in different living organisms due to various biological needs and reasons.

Similarly, pseudocoelom is a biological organ which is basically a liquid filled cavity inside of a organism's body ,to wash other internal organs.

The animals who have pseudocoeloms ,are known as the nematodes.