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NTA Abhyas NEET2020BotanyAnimal KingdomPractice

In the diploblastic animals:

Options

  1. AMesoderm and mesoglea both are absent
  2. BMesoderm is present but mesoglea is absent
  3. CMesoderm is absent but mesoglea is present
  4. DMesoderm and mesoglea both are present.

Correct answer

C. Mesoderm is absent but mesoglea is present

Step-by-step solution

Animals in which the cells are arranged in two embryonic layers, external ectoderm and an internal endoderm, are called diploblastic animals, e.g., coelenterates. An undifferentiated layer, mesoglea, is present in between the ectoderm and the endoderm.

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