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NEETBotanyAnimal Kingdom

Read the following statements and choose the follwoing option: 1. Molluscs have a calcareous shell 2. Apple snails have a visceral hump 3. Molluscs are terrestrial or aquatic (marine or fresh water) having an organ-system level of organisation. 4. They are bilaterally symmetrical, triploblastic and coelomate animals. 5. Body of mollusc is covered by a calcareous shell and is unsegmented with a distinct head, muscular

Options

  1. ABoth 1 and 3 are incorect
  2. BOnly 1 is correct
  3. COnly 5 is incorrect
  4. DAll are correct

Correct answer

C. Only 5 is incorrect

Step-by-step solution

Body of a mollusc is covered by a calcareous shell and is unsegmented with a distinct head, muscular foot and visceral hump. A soft and spongy layer of skin forms a mantle over the visceral hump.

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