If an organism contains 10 chromosomes in it body cell , how many chromosomes will be in the gamete

the areas around the equator

the correct answer is b

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.