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krek1111 [17]
3 years ago
11

In science, a hypothesis must be a. correct. b. manipulated. c. controlled. d. testable. Please select the best answer from the

choices provided A B C D
Biology
2 answers:
erik [133]3 years ago
8 0
D. Testable, because a hypothesis is only a persons guess
Y_Kistochka [10]3 years ago
6 0

the answer is letter d

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Ludmilka [50]
A memory B cell is kinda of how it sounds it has a memory of what your body has fought before such as a virus and can stimulate a response quicker then the first time you encountered it. 

If you lack memory B cells your body doesn't built up the same immune response when you come into contact with the virus again.

"Vaccination would prevent further disease" Incorrect, a vaccine lets you build up memory cells to combat the disease if you lack them you cannot build up a defense.
"Vaccination would not prevent further disease" Correct, a vaccine can be a dead version of a virus or parts of a virus that shows your body what to respond to quickly in the future. If you body cannot make memory b cells it wouldn't help to use a vaccine. Your body wouldn't keep a memory of it being bad.
"You would not produce antibodies" Even if your body does not remember a particular virus it does produce antibodies to combat it just not as quick or efficiantly as something it has come into contact with before and produced memory cells.
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Answer/Explanation:

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