What traits might be ideal to create children who are champion skiers? If it were possible for parents to select these genes, is it okay?

well athlete parents maybe or parents that used to ski, im not sure since learning how to ski and getting good at is isnt really part of genetics

Explanation:

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

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.