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:Which structure of the mammalian ear when removed…The chitin in the exoskeleton of many arthropods is…The part of the mammalian ear responsible for the…The part of the ear which contains nerve cells…Which part of the ear is responsible for the…