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6. What is the Commisure?

  • Where the brachial and pedicle valves meet
  • The line of attachment of the adductor muscle
  • The lines representing new growth

7. What is the Umbo?

  • The area marking the point of last growth
  • Area marking the point of first growth
  • Lines representing new growth

8. What is the Pedicle Foramen?

  • Opening though which the pedicle emerges
  • Attachment point of the pedicle
  • One side of the shell

9. How does the Brachiopod open its valves?

  • By contracting the diductor muscle
  • By releasing the adductor muscle
  • By releasing the diductor muscle
  • By expanding the adductor muscle

10. When did Brachipods first evolve?

  • Triassic
  • Cambrian
  • Devonian
  • Ordovician

11. What are their shells made of?

  • Calcium Carbonate
  • Chitin
  • Carbon

12. How does the Brachipod close its valves?

  • By contracting the adductor muscle
  • By releasing the adductor muscle
  • By contracting the diductor muscle
  • By releasing the diductor muscle

13. What are Cilia?

  • Fleshy stalks used to increased stability when feeding
  • Small projections from the surface of some cells with the ability to waft
  • Small arms used to direct water towards the mouth for filter feeding

14. How to Brachiopods feed?

  • Using the brachidium
  • Using the lophophore
  • Using a pedicle