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6. What organism shows bilateral symmetry?
- Both
- Brachiopods
- Bivalves
7. In which organism does the umbo lie in part of the shell top portion of both valves?
- Brachiopods
- Bivalves
- Both
8. Which organism has a muscular foot?
- Bivalves
- Brachiopods
- Both
9. Which organism is inequivalve?
10. Which organisms shell is made of calcium carbonate?
- Brachiopods
- Both
- Bivalves
11. Which organism shows bilateral symmetry along the dorsal view?
- Both
- Bivalves
- Brachiopods
12. Which organism can use a byssus to attach itself to hard substrate?
- Both
- Bivalves
- Brachiopods
13. Which organism has both diductor muscles and adductor muscles to open the shell?
- Brachiopods
- Bivalves
- Both
14. Which organism contains a lophophore?
- Both
- Brachiopods
- Bivalves
15. Which organism is extant?
- Bivalves
- Both
- Brachiopods
16. Which organism uses gills for respiration?
17. What organism has a lophophore?
- Both
- Brachiopods
- Bivalves
18. Which organism is equivalve?
- Both
- Bivalves
- Brachiopods
19. Which organism has a pedicle for attachment to the substrate?
- Brachiopods
- Bivalves
- Both
20. Which organism belongs to the phylum mollusca?
- Both
- Bivalves
- Brachiopods