source: [□ | □ | □]
destination: [□=□ | □ | □]
spec: I shot two or three times , pa , pa , pa , so then they stopped the car . The following example will illustrate this point . These documents are required by the 1984 amendments to Sec . But as with that unlucky snake handler in Arizona or crazy museum curators , the fact is that many bites in this country occur to people who pick snakes up . of Poke Root and 1 OZ . I have watched an angry Russell 's viper in Myanmar striking wildly at anyone or anything that came near it . The pattern now emerging suggests that early in the evolution of these snakes , genes for enzymes already serving important functions in the body were duplicated to create identical copies elsewhere in the genome . This test takes most students about 90 minutes . Bronwyn Harris has a master 's degree in psychology from The University of the Witwatersrand . The family is poorly known and no comprehensive treatment of the Afrotropical species has been published , though a generic key is available ( Benoit 1977b ) . Viperid venoms , on the other hand , contain an abundance of protein-degrading enzymes called proteases , which produce the symptoms like those encountered by the unlucky rattlesnake handler : strong local swelling and necrosis , and blood loss from cardiovascular damage complicated by coagulopathy , or disruption of the blood clotting system .