Multiple choice

Arrange the following invertebrates in increasing order of number of species:

  1. Corals
  2. Crustaceans
  3. Arachnids
  4. Mollusks

  1. Arachnids, Mollusks, Crustaceans, Corals

  2. Coral, Crustaceans, Mollusks, Arachnids

  3. Crustaceans, Corals, Mollusks, Arachnids

  4. Mollusks, Arachnids, Crustaceans, Corals
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct order. The numbers of species in the four phyla are as follows: Arachnids - 1,02,248 Mollusks - 85,000 Crustaceans - 47,000 Corals - 2000

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