In people, the trait for colorblindness (Xb) is a recessive sex linked trait and normal vision (XB) is dominant. If a female who is heterozygous for colorblindness has children with a man who has normal vision, what percent of their male children would be expected to be color blind? A. 0%
B.25%
c.50%
D.100%

ocean expansion, global warming is melting icebergs and causing water levels to rise.

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.