Question

tripoblastic, pseudocoelomate and parasitic. identify the phylum.
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Answer 1

The correct phylum would be Aschelminthes or Nematodes. They are also called Roundworms.

Explanation:

• These animal phylum is triploblastic and are made up of three layer of cells, namely ectoderm, mesoderm, and endoderm.
• The body cavity or the coelom is false, because it is not derived from mesoderm like in true coelomate organisms. But here it arises from the body cavity hence they are called as Pseudocoelomates.
• It generally is present in the soil and feeds on fungus, bacteria, etc and plays an important role in nutrient cycles.
• But they are mostly parasitic in nature and causes diseases in the host cells.
• The examples of diseases causing nematodes are Ascaris, Trichuris, etc.