1. Intro screen

2. Host screen

3. $400 $600 $800 $200 $1000 Cnidaria Platyhelminthes Nematoda Porifera
Specialization
$200
$400
$600
$800
$1000
Jeopardy round

4. Final Jeopardy
Evolution
Final Jeopardy betting screen

5. Why Porifera is considered an evolutionary dead end
Final Jeopardy
It is believed that no other animal has evolved from them
Final Jeopardy
Why Porifera is considered an evolutionary dead end

6. $200
cells
Single Jeopardy – Category 1
Level of organization

7. Respiration & circulation
$400
Diffusion to/from water flow
Single Jeopardy – Category 1
Respiration & circulation

8. Nervous system + movement
$600
None
Sessile adult
Free-swimming larva
Nervous system + movement
Single Jeopardy – Category 1

9. $800
Water flow created by collar cells draws water into ostia & through sponge
Food particles captured by phagocytosis
Wastes out through osculum
Digestion
Single Jeopardy – Category 1

10. $1000 Reproduction Sexual – hermaphroditic but not self fertilizing
- Sperm released into water flow (external)
Asexual – gemmules or budding
Single Jeopardy – Category 1
Reproduction

11. $200
Radial
Single Jeopardy – Category 2
Symmetry

12. Endoderm (gastroderm)
$400
Ectoderm (epidermis)
Mesoglea
Endoderm (gastroderm)
Body wall layers
Single Jeopardy – Category 2

13. $600
Sexual: hermaphroditic but not self fertilizing; external fertiliztion
Asexual: budding
Single Jeopardy – Category 2
Reproduction

14. Difference between polyp & medusa stages
$800
Polyp = sessile, tentacles up, & asexual
Medusa = motile, tentacles down, & sexual
Difference between polyp & medusa stages
Single Jeopardy – Category 2

15. How they are more complex than Porifera
$1000
level of organization: cell  tissue
symmetry: asymmetrical  radial
digestion: presence of gastrovascular cavity & mouth/anus
nervous system: none  nerve net
Single Jeopardy – Category 2
How they are more complex than Porifera

16. $200
Bilateral
Single Jeopardy – Category 3
Symmetry

17. Respiration & circulation
$400
diffusion
Single Jeopardy – Category 3
Respiration & circulation

18. $600
Cilia & muscle cells
Mobility
Single Jeopardy – Category 3

19. $800
Sexual: hermaphroditic with some self fertilizing (ex. Many parasitic) & some not (ex. penis fencing planarians)
Asexual: fission & regeneration
Single Jeopardy – Category 3
Reproduction

20. How they are more advanced than Cnidaria
$1000
Level of organization: tissue  organ systems
Symmetry: radial  bilateral
Germ layers: 2  3
Digestive system: development of intestines
Nervous system: nerve net  cephalization with ganglia & nerve cords
Excretion: specialized cells
Single Jeopardy – Category 3
How they are more advanced than Cnidaria

21. $200
roundworms
Common name
Single Jeopardy – Category 4

22. Part of the digestive system now present
$400
anus
Single Jeopardy – Category 4
Part of the digestive system now present

23. Body systems relying on diffusion
$600
Circulation
Respiration
Excretion
Single Jeopardy – Category 4
Body systems relying on diffusion

24. internal fertilization
$800
Sexual
Mainly separate sexes
internal fertilization
Single Jeopardy – Category 4
Reproduction

25. How they are more advanced than flatworms
$1000
Body cavity: acoelomate  pseudocoelomate
Digestion: complete with mouth to anus
Reproduction: asexual/sexual  sexual
Single Jeopardy – Category 4
How they are more advanced than flatworms

26. Creates water flow in Porifera
$200
Collar cells
Single Jeopardy – Category 5
Creates water flow in Porifera

27. Supportive cells in Porifera
$400
spicules
Supportive cells in Porifera
Single Jeopardy – Category 5

28. Stinging cells in Cnidaria
$600
Nematocysts or Cnidoblasts
Single Jeopardy – Category 5
Stinging cells in Cnidaria

29. Excretory cells in Platyhelminthes
$800
Flame cells
Excretory cells in Platyhelminthes
Single Jeopardy – Category 5

30. How parasitic worms physically different from free-living ones
$1000
Tapeworms have a head called a scolex with hooks & suckers
Simplified or nonexistent digestive & nervous systems
Reproductive system highly developed
How parasitic worms physically different from free-living ones
Single Jeopardy – Category 5

31. The Jeopardy Champion!
Goodbye screen