Venom - Animal Toxins Chemical Warfare!! Why Chemical...

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Unformatted text preview: Animal Toxins Chemical Warfare!! Why Chemical Warfare? Types and Actions of Venoms Some Animals that use Venoms Conclusions Basic Types of Venoms Passive animals are poisonous following ingestion of poisons from their diet. Active animals that deliver venoms by specialized structures, such as fangs, stingers, spines, etc. Basic Actions of Venoms Hematoxic destroy tissues by digesting proteins; either thinning or thickening the blood. Neurotoxic act at neuromuscular junctions to cause skeletal muscle paralysis. Cardiotoxic act to selectively paralyze the heart, causing heart failure. Some Classes of Venomous Animals Cnidarians jellyfish, sea anenomes, Portuguese men-or-war. Molluscs gastropods (conch); some 85 poisonous species. Reptiles snakes and lizards. Amphibians frogs and toads. Fishes approximately 700 known poisonous species. Arthropods spiders, scorpions, bees, etc. All 30,000 species of spiders are venomous. I. Marine Cnidarians Jellyfish, sea anenomes, Portuguese men-or-war, etc. Stinging nematocysts within cnidoblast cells used for defense, predation, locomotion. Responsible for sticky feeling of anemones....
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Venom - Animal Toxins Chemical Warfare!! Why Chemical...

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