They are called abrasion.
letter D
Explanation:
The science club should use the results to conclude that an increase in temperature decreases the hatch rate of the eggs
If the subject's artery walls were half as thick as they were originally back before 20 years, the most likely long term effect if the measured trend continues is that the arteries and vein will most likely fuse. Giving the effect of the deoxygenated and oxygenated blood to mix.
