BY UP Complete the Midterm Exam. 1 pts Question 74 What best describes EC50? O The dose required to achieve 50% mortality from toxicity. O The dose that is required to achieve 50% of the desired response in 50% of the population. The effective concentration of a drug that produces 50% of the minimum effect. The dose required to get 50% of the population reporting toxic side effects. The effective concentration of a drug produces 50% of the maximal effect. Previous Next Not saved Submit Quiz