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Classification of Animals

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Multiple Choice

Living organisms can be divided into two main groups, i.e. plants and animals. Animals can be divided into two main sub-groups. Animals without backbones are called (1) _______ and those with backbones are called (2) _______.

  1. vertebrates, invertebrates
  2. invertebrates, vertebrates
  3. ambhibians, mammals
  4. fish, reptiles
  5. fish, mammals
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