Answer:
C
Explanation:
For standing waves, the areas where the amplitude is zero are referred to as nodes while the areas where the amplitude is at the maximum are known as antinodes.
A standing wave derives its feature primarily from the fact that there are certain points along the medium of transmission that are apparently seeing to be standing still with no displacement whatsoever. At the same time, there exist opposing points to the points of zero displacements. These points have a maximum displacement in both the positive and negative directions. While the former is referred to as nodal points, the latter is known as the antinodal points.
The defination to energy is B) the ability to create a new substance.
<em><u>valves:</u></em><em><u /></em><u /> veins have valves arteries do not have...
<em><u>lumen:</u></em><em><u /></em><u /> in arteries it is small while in veins it is large...
<em><u>walls:</u></em><em><u /></em><u /> in arteries walls are thick ..in veins walls are thin...
<em><u>blood:</u></em><em><u /></em><u /> veins have deoxygenated blood (except pulmonary vein) .. while arteries have oxygenated blood...(except pulmonary artery)...
