Answer:
1 sperm cell
Explanation:
it only takes one sperm cell to reach the egg in order the get a woman pregnant
When you swallow, a flap called the epiglottis moves to block the entrance of food particles into your larynx and lungs. The muscles of the larynx pull upward to assist with this movement. They also tightly close during swallowing. That prevents food from entering your lungs.
Frequently, you can not be fit if you do not do it often
