What does '$a$' represent in the given figure?

  • A
    Ectoderm
  • B
    Mesoderm
  • C
    Endoderm
  • D
    Mesoglea

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Similar Questions

Match the following columns:
Column-$I$Column-$II$
$P$. Cellular level of organization$I$. Cnidaria,Ctenophora
$Q$. Tissue level of organization$II$. Porifera
$R$. Organ level of organization$III$. Aschelminthes to Chordata
$S$. Organ system level of organization$IV$. Platyhelminthes

Aristotle classified the animals into two groups. Mark the correct one.

What is the relationship between germinal layers and the formation of the body cavity in the case of coelomates,acoelomates,and pseudocoelomates?

Identify the type of symmetry in the given figures.

Which of the following forms the lining of the coelom?

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