Well I need answer choices but things like
Telephones
Radio
Television
Internet apps
People were not careful and wanted to take the selfie to show people that they did something cool. Mainly just to brag on the internet or feel righteous about themselves. Also by not taking the correct precautions
1. Reaction time becomes slower
2. Vision starts to go blurry
3. Speech is a little crazed and actions might be inappropriate.
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To complete the thought of the sentence, the word that will fit that blank is "enzymes". Vitamins work with enzymes to initiate chemical reactions within cells. Some enzymes in our body needs other components like vitamins to enable reactions to happen.
I dont know but it may be urinary system as you need liquid to urinate so that propably includes kidny i am assuming and if you dont get water or get dehydratd and can cuase serous kidney issues thats why i think it is urinary system
