1. Kingdom Animalia

2. You have 30 seconds to list as many animals as you know...

4. Characteristics of organisms in Kingdom Animalia
multicellular
eukaryotic (nucleus and organelles)
heterotrophic
exo or endoskeleton (support system)
sexual reproduction (some asexual)

5. Factors Used To
Classify Animals
level of organization
Body symmetry
cephalization
body cavity formation
mode of reproduction
energy source
motility

6. Level of Organization

7. Types of body symmetry

8. Bilateral Radial Symmetry Pro's & Con's Bilateral
Asymmetrical
no plane around body for repetition
very poor movers
usually sessile
sponges
Bilateral
mirrored down central line of body
good movers
sense organs at one end
anterior, posterior, dorsal, ventral, lateral
Radial
body parts repeated around central disk
no real head
slow movers, usually sessile
sand dollars, anenomes
Bilateral
Asymmetrical
Radial

9. Cephalization

10. Body Cavity Formation

11. Mode of Reproduction

12. Energy Source

14. Phylum Porifera
no true tissues (just specialized cells working independently)
holdfast - attach to rocks
asymmetrical
spongocoel - inner cavity
choanocytes - cell with flagellum that generate current of water
porocyte - allows water to enter

15. Phylum Porifera no real endo or exoskeleton
has silica spicules to form some structure and shape
filter feeder
rely on the water to bring in oxygen and remove CO2

17. Phylum Porifera
reproduce by budding (asexual) or external fertilization
millions of sperm released into current (June-ish)
this triggers eggs to be released (attached to mucous strings) - hermaphrodite
fertilization takes place and larvae settles on substrate and starts to grow into new sponge

18. Phylum Cnidaria anemones, jellies, corals, box jellies, ctenophores
radial symmetry or asymmetrical (some corals)
tissues (cells working together)
have exoderm, endoderm, and mesoglia (jelly filled middle)
start of digestive system (no anus)

19. Phylum Cnidaria
Polyp
Medusa

20. Do you notice anything about these two forms of cnidaria?

21. basic nervous system (nerves in body to respond when they sense food)
Phylum Cnidaria
basic nervous system (nerves in body to respond when they sense food)
sea anemones will battle for territory

23. Nematocysts

24. box jelly sting

25. Coral Reef
asymmetrical
soft coral (sea fans) and hard coral (exoskeleton of calcium)