Question

5.) One primary function of the auditory canal in mammals is to... A. Protect the ear drum. B. Collect sound. C. Provide impedance mismatch. D. Attract mates. E. Equalize pressure. 6.) The approximate length of the auditory canal in an adult human is... A. 1.4 cm B.2.5 cm C. 3.2 cm D. 4.7 cm E. 8.8 cm

Answer 1

5. protect the eardrum

The auditory canal performs the function of protecting the eardrum as a result of its slightly curved shaped which makes it difficult for the animals to each the eardrum.

6. b. 2.5 cm

The length of the auditory canal is 2.5 cm and it extends from the pinna to the eardrum.