Which best describes how a vaccine works?
o
a. it attacks a certain type of virus using antibodies.
o
b. it causes the formation of many new lymph nodes.
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c. it makes the body create memory cells for future infections.
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d. it forces the body to create large numbers of white blood cells

C. It makes the body create memory cells for future infections.

Explanation:

Usually, vaccines are a weaker strain of a certain infection, so the body can destroy it and build an immunity to it.

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.