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Question: Assess the number of animals having bilateral symmetry and a true coelom from the list given below: ...

Assess the number of animals having bilateral symmetry and a true coelom from the list given below: Fasciola, Pila, Chaetopleura, Ancylostoma, Saccoglossus, Meandrina, Hirudinaria, Labeo, Ichthyophis

Answer

6

Explanation

Solution

The solution involves assessing each animal from the provided list for two key characteristics: bilateral symmetry and the presence of a true coelom.

  1. Fasciola: Bilateral, but acoelomate.
  2. Pila: Bilateral, true coelomate.
  3. Chaetopleura: Bilateral, true coelomate.
  4. Ancylostoma: Bilateral, but pseudocoelomate.
  5. Saccoglossus: Bilateral, true coelomate.
  6. Meandrina: Radial, acoelomate.
  7. Hirudinaria: Bilateral, true coelomate.
  8. Labeo: Bilateral, true coelomate.
  9. Ichthyophis: Bilateral, true coelomate.

Counting the animals that satisfy both conditions yields 6.