The ear pinna is strengthened by? by Sunday | Dec 7 | Biology WAEC | 0 comments A. blood pressure. B. cartilage C. bone D. turgor pressure Correct Answer: Option B B. cartilage Users Also Read These:The identification method carried out on the part…The part of the ear in mammals responsible for the…The part of the ear which equalizes air pressure on…The organ responsible for equalizing air pressure in…Which structure of the mammalian ear when removed…