Answer:
A. exercises in which a force acts against muscles.
Explanation:
Resistance exercise is any form of exercise that forces your skeletal muscles (not the involuntary muscles of your heart, lungs, etc.) to contract
External auditory canal is a narrow passage that connects the pinna to the tympanic membrane.
<h3>What is external audotory canal?</h3>
The external audotory canal is considered as entryway from which the sound waves enters to the ear organ. It is a narrow passage that connects the outer ear to the middle ear.
So we can conclude that external auditory canal is a narrow passage that connects the pinna to the tympanic membrane.
Learn more about membrane here: brainly.com/question/1768729
20 seconds it would take to wash his/her hands