Question 7
what is one defining characteristic of a prokaryotic cell?
dna is contained in the nucleus.
some dna is found in plasmids.
dna can be found anyuanere in the capsule
call functions without genetic information

C

Explanation:

Prokaryotic cells doesn't have any nucleus, so the first one is incorrect. No cell can function without genetic information, so the last one is incorrect. Plasmids are present only in Eukaryotic cells, so the second one is incorrect. Which leaves the third one as correct.

helicase, i think thats it

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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.