1. Diversity of Life

2. Cenozoic Era
Mesozoic Era
Paleozoic Era
Quaternay
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
1.65
Man 65
Primates, Mammals
145
Flower plants
210
Birds
245
Dinosaurs ,Mammals
290
Mammal like reptiles
360
Amphibians, Reptiles
409
Insects
440
Fish with jaws
505
Jawless fish, Plants
544
Worms Sponges
4,600
First fossils
Precambrian

3. Oldest Fossils
3.5 billion years ago
Prokaryotic cells

4. Eukaryotic Cells
1.5 Billion years ago

5. Cambrian Period Trilobites
Many animal groups evolved during the “Cambrian Explosion”

6. Paleozoic Era
Fish
Amphibians
Reptiles

7. Mesozoic Era
Age of Dinosaurs

8. Cenozoic Era
Age of Mammals

9. Mass Extinctions End of Paleozoic (Permian Period)
90% of life becomes extinct
End or Mesozoic (Cretaceous Period)
Dinosaurs become extinct

10. Meteorite (Asteroid)
Dinosaur extinction

11. Virus Structure DNA or RNA Protein capsid Spikes
Genes producing new viruses
Protein capsid
Protects nucleic acid inside
Spikes
Used for attachment to a cell

12. Virus
Protein Coat
DNA or RNA

13. Virus Attaches to Body Cell

14. Viral DNA Enters Host

15. Protein coats synthesized from viral DNA instructions

16. Viral DNA Synthesized

17. Viruses Exit Cell

18. Host Cell Killed by Virus

19. Viral Diseases
Flu
AIDS
Measles
Hepatitis

20. Bacteria Prokaryotic cells Single-celled Tuberculosis Tetanus
Food poisoning
Plague

21. Antibiotics Interfere with enzymes of bacteria
Inhibit cell wall synthesis
Inhibit protein synthesis

22. Kingdom Protista
Unicellular
Protozoa
Animal like
Algae
Plant like

23. Zooflagellates Move by flagella Giardia
Giardiasis
Backpackers disease
Beaver fever
Inhabits intestines of several animals and man
Cramping and diarrhea

24. Zooflagellates Trypanosoma Parasites in the blood Chagas disease
Central and South America
Sleeping sickness
Africa

25. Ciliates Paramecium
Move with cilia
Movie

26. Amoeboids Move with pseudopodia

27. Sporozoa
Endoparasite
Plasmodium
attacks red blood cells
malaria

28. Malaria Most important parasitic disease of humans today
WHO estimates that 300 million new cases occur annually with 2 million annual deaths
Transmitted by bite of infected mosquitoes of genus Anopheles

29. Algae
Chloroplasts
Photosynthesis
Ancestors or plants

30. Plants
Evolved from algae 435 MYA
Waxy cuticle to prevent water loss

31. Bryophytes Moss No vascular tissue Motile sperm
Limits upward growth
Motile sperm
Limited to moist habitat

32. Bryophytes Gametophyte Sporophyte Produce gametes Dominant
Produce spores

33. Ferns Vascular tissue Need moist habitat Sporophyte dominant
Grow larger than moss
Seedless
Motile sperm
Need moist habitat
Sporophyte dominant

34. Carboniferous Period Huge forests made of seedless vascular plants
Converted into coal, oil and gas.

35. Gymnosperms Produce seeds Do not depend on water for fertilization
Sperm are in pollen
Not restricted to moist habitat
Needle-like leafs prevent water loss

36. Cones Conifers Male and female cones Seed produced on an open cone
Cones are gametophyte
Tree (except cones) is sporophyte

37. Angiosperms Vascular tissue Non-motile sperm in pollen grains
Do not require water for fertilization

38. Seed Protected
1 is seed
2 is ovary
Ovary is fruit

39. Flower 1 = petal 2 = anther 3 = filament 4 = stigma 5 = style
6 = ovary
7 = ovule
8 = pistol
9 = sepal 9
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40. Fungi
Decomposers
Parasites
Diseases of plants and animals

41. Thrush

42. Reproduction
Release spores
Budding

43. The End