Answer: ( QUESTION A:)<u> Measles is a childhood infection caused by a virus. Once quite common, measles can now almost always be prevented with a vaccine.</u>
<u>Also called rubeola, measles can be serious and even fatal for small children. While death rates have been falling worldwide as more children receive the measles vaccine, the disease still kills more than 100,000 people a year, most under the age of 5</u>.
(QUESTION B:)<u> </u><u>Measles attacks your body, it goes to war against your white blood cells. Specifically, it binds to your B- and T-cells, then wipes them out. Earlier symptoms come with a high fever, a cough, a runny nose, and itchy, watery eyes. One of the most recognizable effects of measles on the body is the characteristic rash.</u>
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Explanation:
Answer:
Spreader or transmitter or something
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True
Explanation:
Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity.
The answer is true. The kidneys help filter and remove extra waste and extra water that turns into urine. The urine flows from the kidneys to the bladder through tubes called ureters. The bladder stores the urine until urination occurs.
