Mrs. gray, a 50-year-old mother of seven children, is complaining of dull, aching pains in her legs. she reports that the pain has been getting progressively worse since the birth of her last child. during her physical examination, numerous varicosities are seen in both legs. what pathologic changes have occurred in these veins?

Which would prevent a plant from growing

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d

How do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.