Bilateral symmetry,blastopore forming the mouth (protostome),and a true coelom occur in:

  • A
    Echinodermata
  • B
    Chordata
  • C
    Annelida
  • D
    Platyhelminthes

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Similar Questions

Animals of this phylum excrete through nephridia.

In most annelids,excretion occurs through . . . . . . .

Earthworm belongs to which of the following phyla?

$A$: The first circulatory system is observed in the phylum Annelida.
$R$: The first true coelom is observed in the phylum Annelida.

Which of the following respiratory pigments is found in the coelomic fluid of certain annelids?

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