Characterstis features of Animal

Sharp teeth is a characteristic feature of___animal.

Presence of biconcave, circular and anucleated RBC is the characteristic feature of which animal?

Animals which possess collar cells and an osculum as characteristics features belong to phylum :

Select the correct option with respect to characteristic. Features of given animals : (A) Annelida : Metamerically segmented and schizocoelomate animals. (b ) Arthropoda : joined appendages with a closed circulatory system. (C) Ctenophora: shown bioluminescence and also known as sea walnuts. (d) porifera : Archaeocytes are called collar cells. lines the spongocoel .