1) rodenticides often interfere with which vitamin in the body? a. vitamin a b. vitamin b c. vitamin c d. vitamin k 2) the most common forms of rodenticide are often anticoagulants. a. true b. false 3) what is the time that it takes for half of the chemical or toxin to be expelled from the body? a. expulsion rate b. metabolic time c. half life d. digestive period 4) raisins are only a threat to cats among domestic pets. a. true b. false 5) chronic toxicosis typically refers to exposure longer then what time period? a. 24 hours b. 7 days c. 5 weeks d. 3 months