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>
Answer:
Not necessarily
Explanation:
The human body needs carbs for energy. A salad is still going to have some carbs, just like processed foods such as Oreos or something. Some things you buy will be empty calories, if they are made of sugar and are not high in nutritional value. The amount of nutritional value in someone's food is not dependent on carbs, or calories, you have to look at the whole thing.
Hello,
It depends on a lot more things. Like what types of exercise you are doing, this will affect the areas you are exercising and therefore will effect where you see the results. It varies from person to person, maybe give it a month. However, some work out that often and won't ever see results, it just depends on your body.
Good luck.
I believe the answer is C
<span>The most common listening problem is A. paying attention but misinterpreting the message. It is a problem that happens all the time - you think that the person you are talking to understands what you are trying to tell them, however, they don't really, and that can cause and issue, or sometimes even a conflict. This is why you need to speak clearly and often ask people whether they understand your message so as to avoid problems.</span>
