They are most mainly consists of "Keratin"
So, option B is your answer.
Hope this helps!
Answer:
produce sound when they come together and then vibrate as air passes through them during exhalation of air from the lungs. This vibration produces the sound wave for your voice. In order for the sound to be clear and not raspy or hoarse, the vocal folds must vibrate together symmetrically and regularly
Explanation:
D. Germs is the correct answer.
Rowing helps develop muscle endurance. Hope this helps
The next thing to do is assist the situation until the police arrive.
