1) Identify the methods by which toxicants enter the body. Provide a brief description and at least two examples of each.Your response should be at least 250 words in length.APA formatwith citations and references.2) List and describe the factors that affect the distribution of a toxicant in the body.Your response should be at least 250 words in length.APA format with citations and references.3) Explain the importance of the cytochrome P-450 enzyme in toxicant biotransformation.Your response should be at least 250 words in length.APA formatwith citations and references.4) Identify the methods for toxicant elimination. Choose one of the methods and explain how a toxicant is eliminated.Your response should be at least 250 words in length. APA formatwith citations and references.