Q. Choose the correct statement
A) All mammals are viviparous
B) All cyclostomes do not possess jaws and paired fins
C) All reptiles have a three chambered heart
D) All Pisces have gills covered by an operculum
Explanation
[Solution] Cyclostomes lack jaws and paired fins. Monotremes lay eggs, crocodiles have 4 chambers, and cartilaginous fishes lack an operculum. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.