Because an antibody is "made" relative to the antigen, but kept at low levels when you are exposed the first time ("primary immune response"). The second time you're exposed to the same antigen, memory cells recognize it and the body produces a high level of antibodies, and the level of antibodies usually remains higher for a longer time ("secondary immune response"). This is your basic immune response (primary and secondary).
This explains exactly why vaccines are effective to extremely effective.
Answer:
''Planets moves around the sun with constantly changing speed.''
''The sun uses its gravity to pull the planets towards it''
Explanation:
These two statements describes Newtons laws of Motion and Gravity. With statement 1, which shows the motion of the planets constantly changing due to the attraction of the sun. When the planets come close together to the sun, its orbital speed increases while on the other hand, when the planets goes farther from the sun, its orbital speed decreases. The statement 2 indicates that sun attracts other planets due to its gravity which allow them to move in a curved.
Answer:
What has a head and a tail but no body?
You can hold it without using your hands or your arms. What is it?
Explanation:
have a wonderful day! :)
To limit the hazard of creating nephrotoxicity, the patient should remain all around hydrated by drinking no less than eight 8-oz glasses of water day by day. Eating light dinners or taking the medication on an unfilled stomach would not diminish the hazard of creating nephrotoxicity. A medical attendant ought to never change the medication measurement without counseling the prescriber.
