The action of the diaphragm and chest cavity when you exhale and squeeze air from the lungs is that it relaxes and moves upward into the chest cavity. To reduce the space in the chest cavity the intercostal muscles between the ribs also relax.
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The birds and the bees 101 says for pregnancy to take place, a sperm has to meet an egg.
But that can’t happen if the sex acts that allow that to happen, don’t happen.
Enter: Abstinence.
“Abstinence means something different to everyone,” says Gersh. “The most common definition is abstaining from sexual intercourse.”
“If you’re looking to avoid pregnancy, that means specifically avoiding vaginal sexual intercourse,” adds Gersh. “It’s incredibly effective for folks who are actually committed to never have intercourse
If you don't have the wrong then you 100% have the right.
Answer: A.
height and amount of muscle fibers
Explanation: Height and the number of muscle fibers one has naturally are out of their control.