Read the attached article (page 9-12) titled: "Pet Food Recall is Expanded After 70 Dogs Die" and answer the following questions: a) What was the name of the poison found in the pet food? b) What organism produces this poison? c) What is the structure of the B1 form of this poison? d) Identify the ketone, ether, enol ether, and ester functional groups in the poison e) Identify and assign stereochemistry to all asymmetric centers (R or S). f) This poison is activated in the liver to form a potent carcinogen. What is the structure of the activated poison? g) The activated poison is an alkylating agent. What is the structure of the most important cellular nucleophile alkylated by this compound? h) Write out the mechanism of the alkylation reaction.