Evolution of Eukaryotes

1
Evolution of Eukaryotes
2
Invertebrates

• Lacking a backbone
• Examples
• Jellyfish
• Sponges
• Crabs

3
DIVIDING LINE

• Invertebrates to Vertebrates
• No Backbone to Backbone
• Increased specialization and movement of
  organisms begins

4
Fish

• Scales
• GillsBreath Underwater
• Soft eggs
• 1 exception - Sharks
• Aquatic Life
• 2 Chambered Heart

5
Amphibians

• Skin
• Gills/Lungs
• Soft Eggs
• 2 Chambered Heart
• Appendages

6
Reptiles

• Scales, protection (dessication)
• Lungs
• Hard eggs
• Appendages or Loss of Appendages
• 3 Chambered Heart Crocodiles

7
Dinosaurs

• Scales
• Lungs
• Hard eggs
• Terrestrial Aquatic
• Birds Descended
• Appendages

8
Birds

• Feathers
• Modified scales
• Lungs
• Hard eggs
• Live on land
• Flight
• Hollow Bones
• 4 Chambered Heart
• Homeothermic

9
Mammals

• Hair/Fur
• Lungs
• Hard eggs/Live birth
• Mammary Glands
• Four Chambered Heart
• Homeothermic

10
Primates

• Skin/hair
• Lungs
• Live birth
• Terrestrial/Trees
• Tactile Fingers/Toes
• Opposable Thumbs
• Intelligence
• 4 Chambered Heart
• Homeothermic

11
Humans

• Hair
• Lungs
• Live birth
• Terrestrial
• Higher Intelligence
• Opposable Thumb
• 4 Chambered Heart
• Homeothermic
• Bipedalism