How long does it take for an std to show up?

If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you suggest as a productive avenue for drug development? a) a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract b) a drug to treat diabetes that irreversibly inhibits an enzyme in the metabolic pathway to synthesize glucose c) a compound that acts as a competitive inhibitor for a digestive enzyme produced only in the presence of certain foods d) a compound that inhibits enzymes by significantly changing the ph throughout the body

In which way does nicotine cause addiction? by stimulating the brain's pleasure center by increasing blood-sugar levels by decreasing dopamine levels by reducing depression and anxiety

10. what is one long-term effect of tobacco use? changes in brain chemistry coronary heart disease decreased appetite increased heart rate