Basic Science : Phylum Arthropoda QUESTIONS AND ANSWERS :: part10 : 21 to 25
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
21.Molluscs have |
| 3 – 4 pairs of hearts |
| A single tubular heart |
| 2 – 3 chambered heart |
| Multichambered heart |
22.Octopus is a member of class |
| Chaetopoda |
| Pelecypoda |
| Gastropoda |
| Cephalopoda |
23.Sea Hare is |
| Chiton |
| Nautilus |
| Aplysia |
| Cypraea |
24.Visceral mass is segmented in |
| Neopilina |
| Aplysia |
| Dentalium |
| Xancus |
25.Edible Oyster is |
| Pinctada |
| Ostrea |
| Mytilus |
| Lamellidens |
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