Which statement accurately describes the relationship between air pressure, air density, or altitude? O As altitude increases, pressure increases.
O As altitude increases, air density increases.
O Air pressure and density are lowest at sea level.
O Denser air exerts more pressure than less dense air

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

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.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .

the answer is d p: cell, q: organ, r: organ system, s: tissue