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Six Kingdoms of Life Prokaryotes Domain Archaea Bacteria Archaebacteria Eubacteria Kingdom Archaea Prokaryotes Unicellular Most are heterotrophs • Some autotrophs use chemosynthesis DNA, ribosomes, cell wall Asexual & sexual reproduction • Cell wall does not contain peptidoglycan Types of Archaea Heat-loving • Live in hot, acidic environments – hot springs, thermal vents, around volcanoes Salt-loving • Live in salty environments – salt lakes, Dead Sea Methane-making • Live in swamps and in human intestines • Use CO2 during respiration and expel methane gas as waste Eubacteria Prokaryotes Unicellular Most heterotrophs • Cyanobacteria photosynthesize DNA, ribosomes, cell wall Asexual & sexual reproduction • Cell wall contains peptidoglycan Shapes of Eubacteria Cocci – sphere shaped Bacilli – rod shaped Spirilli – spiral shaped Bacteria – Human Diseases Sexually transmitted Respiratory Skin Digestive Tract Nervous system Syphilis, gonorrhea, chlamydia Strep throat, pneumonia, whooping cough, anthrax Acne, boils, infections of wounds or burns Gastroenteritis, many types of food poisoning, cholera Botulism, tetanus, bacterial meningitis Eukaryotes Domain Kingdom Protists* Eukaryota Fungi Plants Animals Protists – “odds and ends” Eukaryotes Some unicellular, some multicellular Some autotrophs, some heterotrophs Cell wall – various composition • Cellulose, algin, agar, calcium carbonate, silica Asexual & sexual reproduction Protists – three types Animal-like - Protozoa - unicellular Plant-like – Algae (one or more cells) Fungus-like • Heterotrophs – eat other organisms • Ex. Amoebas, ciliates, paramecia • Autotrophs – photosynthesize • Ex. Giant kelp, algae • Heterotrophs – absorb nutrients from decaying organisms • Ex. Slime mold, water mold Fungi Eukaryotes • true nucleus & membrane bound organelles Most multicellular (yeast unicellular) Heterotrophs – digest food before consuming • • • absorb nutrients from decaying organisms parasitic – absorb nutrients from a living host mutualistic - lichens Cell wall – made of chitin Asexual & sexual reproduction Plants Eukaryotes Multicellular Autotrophs Specialized tissues and organs • Cell wall contains cellulose Sexual reproduction Animals Eukaryotes Multicellular Heterotrophs Specialized tissues and organs • Do not have a cell wall Sexual Reproduction