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Disease Causing Organisms AG- ASB- 18 a-f What causes diseases in animals? What diseases have you had? What is a disease? • Any condition of an organism that makes it unable to function normally. Name some of the more common diseases in humans • Cancer • Heart disease • Diabetes The three major types of disease causing organisms • Bacteria • Viruses • Protozoa What are some signs to look for in sick animals? • • • • Droopy ears or eyes Loss of appetite Restlessness Dull hair coat Bacteria • Very small one-celled organisms • How are some bacteria helpful to us? – Making of cheese – Penicillin – Sauerkraut – Decomposition of organic material Bacterial Diseases • • • • • • • Pneumonia Tetanus Anthrax Blackleg Brucellosis Distemper Erysipelas Sources of bacteria in our environment • They are everywhere from the hottest desert to the coldest ice. – Live in the ground – Animal wastes – Contaminated feed – Other animals Viruses • Tiny particle of matter composed of a core of nucleic acid surrounded by a layer of protein • Viral Diseases – Cholera – Equine Encephalomyelitis – Hemorrhagic Septicemia – Newcastle – Warts Protozoa • Tiny one celled animals, some of which cause diseases. Assignment • For each disease: – Name the bacteria/virus that causes the disease – List the symptoms of the disease – The types of animals the disease commonly effects – 2 pictures of each disease (ex: results of having) • Create a PowerPoint/Prezzi/Word doc with the information
