Q. Which one of the following items gives its correct total number?
A) Cervical vertebrae in humans - 8
B) Floating ribs in humans - 4
C) Amino acids found in proteins - 16
D) Types of diabetes - 3
Explanation
[Solution from source] Humans have 12 pairs of ribs, and the last 2 pairs (11th and 12th), which are not joined to the sternum, are the floating ribs, giving 4 in total. There are 7 cervical vertebrae, and proteins are built from 20 amino acids. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.