Q. The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in:
A) nails
B) ear ossicles
C) tip of the nose
D) vertebrae
Explanation
[Solution from source] The pinna is supported by cartilage, which NCERT says is also present in the tip of the nose, the outer ear joints and between adjacent vertebrae. Ear ossicles and vertebrae themselves are bone, and nails are keratin. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.