MCQ
Choose the correct statement.
- AAll mammals are viviparous.
- ✓All cyclostomes do not possess jaws and paired fins.
- CAll reptiles have a threechambered heart.
- DAll pisces have gills covered by an operculum.
✓
Answer
Correct option: B.
All cyclostomes do not possess jaws and paired fins.
b
(b) : Ornithorhynchus and Tachyglossus are oviparous mammals. Crocodile is a reptile which possesses four chambered heart. In cartilaginous fish (except Chimaera) gills are not covered by an oper culum.
(b) : Ornithorhynchus and Tachyglossus are oviparous mammals. Crocodile is a reptile which possesses four chambered heart. In cartilaginous fish (except Chimaera) gills are not covered by an oper culum.
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