Category : Zoology

Check Your Knowledge About Phylum Mollusca MCQ Quiz Test! Phylum Mollusca Trivia Quiz

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Phylum Mollusca is the second largest phylum. Animals in phylum Mollusca are soft-bodied and have a shell. They have an organ-system level of organization. They have a complete digestive system and having rasping organ radula with transverse rows of teeth. They respire through gills or ctenidia or lungs or pulmonary sac or through the body surface. The respiratory pigment is hemocyanin. They have an open circulatory system which consists of 2-3 chambered dorsal heart and arteries open into sinuses. They excrete through sac-like metanephric kidney or organ of Bojanus Keber's organ and they produce NH3 or urea. so, take this quiz and improve your knowledge about phylum Mollusca.

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1. Which one is unique to Mollusca?

35387 Osphradium
35388 Necre and radula
35389 Mantle and unsegmented soft body
35390 All of the above

2. Which one is the type of cleavage in Mollusca?

35391 Meroblastic
35392 Holoblastic
35393 Spiral and holoblastic
35394 Spiral

3. In which class of Mollusca head, tentacles and eyes are not differentiated?

35395 Cephalopoda
35396 Gastropoda
35397 Both of these
35398 Pelecypoda

4. Which Mollusca has carnivorous feeding habits?

35399 Octopus
35400 Pila
35401 Unio
35402 Pearl oyster

5. Which of the Mollusca is called living fossil because it shows metamerism and annelid like larva?

35403 Teredo
35404 Patella
35405 Chiton
35406 Neopilina

6. What is the function of radula?

35407 Catching food
35408 rasping food
35409 Digestion
35410 Sensation

7. What kind of circulatory system present in Mollusca?

35411 Open
35412 Closed
35413 Reduced
35414 Absent

8. In Mollusca, eye is present over a stalk is called .....

35415 Ostracum
35416 Operculum
35417 Ommatophore
35418 Osphradium

9. Octopus is commonly called .....

35419 Hag fish
35420 Silver fish
35421 Cuttle fish
35422 Devil fish

10. Which of the following is not a fish?

35423 Sea horse
35424 Cuttle fish
35425 Lung fish
35426 Flying fish

11. How many ganglia are present in Mollusca?

35427 6
35428 5
35429 4
35430 3

12. Which of the following form pearl?

35431 Octopus
35432 Neopilina
35433 Sepia
35434 Oyster
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