NEET · Biology · STD 11 - 4. Animal kingdom
Choose the correct statement.
- A All mammals are viviparous.
- B All cyclostomes do not possess jaws and paired fins.
- C All reptiles have a threechambered heart.
- D All pisces have gills covered by an operculum.
Answer & Solution
Correct Answer
(B) All cyclostomes do not possess jaws and paired fins.
Step-by-step Solution
Detailed explanation
(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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