Check all that apply. Claim: Cell phones should be allowed in schools because banning them is no longer universally accepted as the best policy. a description of the student body population a counterclaim that supports banning cell phones in school statistics that show the benefits of having cell phone access in schools reasons why cell phone access in a classroom can help the learning process a detailed story of how access to a house phone helped in a school situation a rebuttal that rejects the counterclaim

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explanation:

it would lead to upper respiratory infections and pneumonia.

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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.

the tricuspid valve is present between right atrium and right ventricle