DNA replication results in two DNA molecules with ___ strands. Each has one strand and one ___ strand? Fill in the blanks

i thinking chemical change

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.