Biology
Grade-8
Easy

Question

Pick the odd one out:

  1. Insects
  2. Mammals
  3. Birds
  4. Mollusks

hintHint:

Mollusks is the odd one as it is an invertebrate.

The correct answer is: Mollusks


    • Insects, mammals, and birds are vertebrates 
    • Mollusks are invertebrates.
    • So the mollusks are the odd ones in the category.

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