Q. Common among all mammals is
A) Ventral nerve cord
B) Seven cervical vertebrae
C) All are carnivores
D) All are producers
Explanation
Presence of seven cervical vertebrae in the neck is common feature in all mammals. These vertebrae are acoelous, covered by cartilaginous pads, $i.e.,$ epiphysis.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.