Which of the following classes is incorrectly matched with its general characters ?A. Cyclostomata : Lack jaws and paired fins and body is covered with placoid scales.B. Osteichthyes : Four pair of gills are covered with an operculum and skin is covered with cycloid scalesC. Reptilla : Tympanum represents ear and fertilisation is internalD. Aves : Endoskeleton is fully ossified and long bones are hollow with air cavities called as pneumatic bones.

Which of the following classes is incorrectly matched with its general

1.	Which of the following classes is incorrectly matched with its general characters ?A. Cyclostomata : Lack jaws and paired fins and body is covered with placoid scales.B. Osteichthyes : Four pair of gills are covered with an operculum and skin is covered with cycloid scalesC. Reptilla : Tympanum represents ear and fertilisation is internalD. Aves : Endoskeleton is fully ossified and long bones are hollow with air cavities called as pneumatic bones.
Answer» Correct Answer - A Cyclostomes have a sucking and circular mouth without jaws. Their body is devoid of scales and paired fins.