Nicotine is the addictive chemical in tobacco, the others are in cigaretted and all harmful to the body
Centrifuged and examined microscopically for crystals, casts, red blood cells, white bloods cells, and bacteria or yeast The patient should be instructed on the proper technique for clean catchurine<span> collection. this is </span>
Answer:
It has allowed researchers to study the brain more efficiently than what they did before. and it also helped them by the researchers being able to find cures for diseases.
Explanation:
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I found this in another brainly question "brainly.com/question/5956798"</h3>
