Multiple choice

Which of the following phyla possess all the three germinal layers?

  1. Porifera

  2. Coelentrata

  3. Platyhelminthes

  4. Cnidaria

  5. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Those animals in which the developing embryo has a third germinal layer, mesoderm, in between the ectoderm and endoderm, are called triploblastic animals e.g. platyhelminthes to chordates.