The second statement best explains the type of blood vessel and the function of these vessels' valves - <span>These are veins, which prevent the backflow of blood because the walls have little muscle to pump blood back to the heart.
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Veins are large blood vessels which carry blood back to the heart. <span>Veins have a system of valves to prevent back-flow.</span>
Medical diagnosis is the process of determining which disease or condition explains a person's symptoms and signs.It basically enables the doctor understand what disease is the patient going through.
Diagnosis is often challenging, because many signs and symptoms are nonspecific and different diseases also have them.
For example, redness of the skin is a sign of many disorders and thus does not tell the healthcare professional what is wrong.
Genetic traits,and personality
Answer:
The prohibition of alcohol during the 1920s resulted in the smuggling of alcohol, informal production of liquor, illegal sale of liquor, and the rise of criminal activity mostly associated with gangs.
Explanation:
The prohibition of alcohol during the 1920s resulted in five main things:
1. Bootlegging: manufacturing and sell liquor illegally.
2. Speakeasies: places, such as clubs or stores, that sold alcohol.
3. Smuggling: Smuggling of alcohol throughout different states.
4. Homemade liquor in private homes.
5. An increase in criminal activity related to gangs that deal with alcohol, such as Al Capone and his gang.
When the blood gets to the capillaries it feeds the whole body nutrients and holds back waste materials so it isn't spread through our body.
