| 11. | Samples included tilapia, crabs, bivalves, clams and gastropods.
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| 12. | They create a bivalved composite leaf case of 8 10 mm.
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| 13. | The rear end is bivalved, strongly narrowed and bent downwards.
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| 14. | It is bivalved and has a mouth angle of about 45?
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| 15. | They create a laterally compressed, bivalved, composite leaf case.
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| 16. | In many species of bivalves the beaks point towards one another.
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| 17. | Examples of bivalves are clams, scallops, mussels, and oysters.
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| 18. | Doubly uniparental inheritance of mtDNA is observed in bivalve mollusks.
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| 19. | Like most bivalves, mussels have a large organ called a foot.
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| 20. | Bivalves have also been used in the biocontrol of pollution.
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