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Guess 20 Bivalves From Animal Definition Clues

Use source-backed clues to identify 20 Bivalves answers. Compare four plausible choices and reveal a concise explanation after every question.

20 questionsEasy6–8 min
Animals20 questions · one page

QuizMora Editorial TeamPublished August 30, 2026 · Updated August 30, 2026

Work through 20 mobile-friendly clues focused only on Bivalves. The reasoning task changes throughout the quiz, while every answer and explanation stays tied to the cited source.

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20 QuestionsAnimals Quiz
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Question 1 of 20AnimalsDefinition clue: marine bivalve mollusk having a heavy toothed shell with a deep boat-like… Which term fits?
Question 2 of 20AnimalsTwo clues—scallop: a small scallop inhabiting shallow waters and mud flats of the Atlantic… Name the answer.
Question 3 of 20AnimalsSource card: wormlike marine bivalve that bores into wooden piers and ships by means of…; grouped Which entry?
Question 4 of 20AnimalsWithin Bivalves: inch long mollusk imported accidentally from Europe; clogs utility Which option belongs?
Question 5 of 20AnimalsRepair the missing label: tropical marine bivalve found chiefly off eastern Asia and Pacific coast… Choose it.
Question 6 of 20AnimalsComplete this pair: bivalve → edible marine bivalve having a fluted fan-shaped shell that swim by… Which term?
Question 7 of 20AnimalsEliminate the broad labels: common edible European cockle What remains?
Question 8 of 20AnimalsFollow the category path: oyster; marine bivalve common in Philippine coastal waters Name the entry.
Question 9 of 20AnimalsApply both constraints: oyster and “thin-shelled bivalve having the right valve deeply notched” Which answer?
Question 10 of 20AnimalsCombine the evidence: marine bivalve that bores into rock or clay or wood by means of saw-like…; What fits?
Question 11 of 20AnimalsDefinition clue: a large edible clam found burrowing deeply in sandy mud along the Pacific… Which term fits?
Question 12 of 20AnimalsTwo clues—mussel: marine bivalve mollusk having a dark elongated shell; live attached to… Name the answer.
Question 13 of 20AnimalsSource card: a mussel with a dark shell that lives attached to rocks; grouped under marine Which entry?
Question 14 of 20AnimalsWithin Bivalves: an edible American clam; the heavy shells were used as money by some… Which option belongs?
Question 15 of 20AnimalsRepair the missing label: marine or freshwater bivalve mollusk that lives attached to rocks etc. = Choose it.
Question 16 of 20AnimalsComplete this pair: bivalve → common edible, burrowing European bivalve mollusk that has a strong… Which term?
Question 17 of 20AnimalsEliminate the broad labels: marine mollusks having a rough irregular shell; found on the sea What remains?
Question 18 of 20AnimalsFollow the category path: oyster; common edible oyster of Atlantic coast of North America Name the entry.
Question 19 of 20AnimalsApply both constraints: oyster and “a large oyster native to Japan and introduced along the Which answer?
Question 20 of 20AnimalsCombine the evidence: an edible clam with thin oval-shaped shell found in coastal regions of the…; What fits?

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