1. The Diversity of Living Things Section 4.3

2. Life is Diverse 1. Classification- how scientists organize the varieties into categories 2. 3 Million Species have been classified 3. Millions are still unclassified 1. Classification- how scientists organize the varieties into categories 2. 3 Million Species have been classified 3. Millions are still unclassified

3. Six Kingdoms Prokaryotes (Bacteria) a) Heterotrophs- eat other organisms to get energy b) Photoautotrophs- make energy from light (photosynthesis) c) Chemotrophs- make energy from chemical substances like salts Divided into 2 Kingdoms: 1. Kingdom Eubacteria- single celled; no nucleus; very common 2. Kingdom Archaebacteria- single celled; no nucleus; live in harsh environments (hot springs, swamps) Prokaryotes (Bacteria) a) Heterotrophs- eat other organisms to get energy b) Photoautotrophs- make energy from light (photosynthesis) c) Chemotrophs- make energy from chemical substances like salts Divided into 2 Kingdoms: 1. Kingdom Eubacteria- single celled; no nucleus; very common 2. Kingdom Archaebacteria- single celled; no nucleus; live in harsh environments (hot springs, swamps)

4. 6 Kingdoms Continued… 3. Protista a) Eukaryotes b) Can be either Autotrophs (can make their own food) or Heterotrophs c) Most live in water d) Mostly unicellular e) Diverse f) Examples: Paramecium, Amoeba, Euglena, kelp 3. Protista a) Eukaryotes b) Can be either Autotrophs (can make their own food) or Heterotrophs c) Most live in water d) Mostly unicellular e) Diverse f) Examples: Paramecium, Amoeba, Euglena, kelp

5. 6 Kingdoms Continued… 4. Fungi a) Eukaryotes b) Strictly Heterotrophic- absorb their food through their body surface c) Unicellular or Multicellular d) Have cell walls e) Most live on land f) Examples: mushrooms and yeast 4. Fungi a) Eukaryotes b) Strictly Heterotrophic- absorb their food through their body surface c) Unicellular or Multicellular d) Have cell walls e) Most live on land f) Examples: mushrooms and yeast

6. 6 Kingdoms Continued 5. Plantae (plants) a) Eukaryotic b) Autotrophic (Heterotrophic- Venus Fly trap**rare) c. Multicellular d. Examples: grass, trees, daisies, rosebush 5. Plantae (plants) a) Eukaryotic b) Autotrophic (Heterotrophic- Venus Fly trap**rare) c. Multicellular d. Examples: grass, trees, daisies, rosebush

7. 6 Kingdoms Continued… 6. Animalia (animals) a) Eukaryotic b) Heterotrophs c) Multicellular d) No cell walls e) Bodies are flexible f) 2 classifications: Invertebrates Vertebrates 6. Animalia (animals) a) Eukaryotic b) Heterotrophs c) Multicellular d) No cell walls e) Bodies are flexible f) 2 classifications: Invertebrates Vertebrates

8. Insects 1. Invertebrates 2. Most abundant animal species on the planet. Why? a) have a waterproof exoskeleton b) they move quickly c) they reproduce quickly 3. Many fly 4. Small size allows them to hide from predators and live on very little food 1. Invertebrates 2. Most abundant animal species on the planet. Why? a) have a waterproof exoskeleton b) they move quickly c) they reproduce quickly 3. Many fly 4. Small size allows them to hide from predators and live on very little food