1. Kingdom Animalia

12. Invertebrates: Critters with no backbone
-Porifera
-Cnidaria
-Worms: Flatworms, Roundworms, Annelida
-Mollusks
Arthropods
Echinoderms

13. Porifera:
The Sponges

14. Cnidaria- Jellyfish, anemones, coral, hydra
If a human were to get stung by a Lion's Mane jelly it could be fatal, provided enough poison had been absorbed by the body. The venom can cause paralysis of the breathing muscles so the victim would die from suffocation. Don't expect to go swimming at the beach and see a huge Lion's Mane jelly - this big guy probably lived way out in the open ocean, way down deep. Many of this species of jellyfish are found in frigid, Arctic waters.
'The most venomous jellyfish is the beautiful but deadly Australian sea wasp, or box jellyfish, Chironex fleckeri, the most venomous cnidarian in the world. The sea wasp jellyfish has enough poison to kill 60 humans. Its cardiotoxic venom has caused the deaths of at least 70 people off the coast of Australia alone in the past century, with some victims dying within four minutes. One effective defence, however, is women's hosiery, outsize versions of which were once worn by Queensland lifesavers at surfing tournaments.' Before you invest in pantyhose, also consider that the guy who nominated the Portuguese man o' war is right, they are dangerous. They are nowhere near as deadly as the sea wasp, but really severe reactions can include difficulty in breathing and cardiac arrest. These creatures are not true jellyfish, though, so 'Boxy' wins on points!
3 years ago

15. Flatworms
Roundworms
Annelids (segmented worms

16. Mollusks

17. Arthropods: Segmented Legs

18. Echinoderms: Spiny Skin

19. Vertebrates – Backbones

20. Which of these is an “animal”?

21. Answer: They are all animals!
Characteristics of Animals:
heterotrophic
eukaryotic
Multicellular
Show motility at some point
lack cell walls
95% = invertebrates (do not have backbone) ex. Insects to squid 5% = vertebrates (have a backbone) ex. Mammals, reptiles, fish

22. Animal Functions Feeding: Herbivore = eats plants
Carnivore = eats animals
Omnivore = eats plants and animals
Detritivore = feed on decaying organic material
Filter Feeders = aquatic animals that strain food from water
Parasite = lives in or on another organism (symbiotic relationship)

23. 2. Respiration:
Take in O2 and give off CO2 Lungs, gills, through skin, simple diffusion

24. 3. Circulation:
-Very small animals rely on diffusion -Larger animals have a circulatory system to move materials throughout their bodies

25. 4. Excretion:
Primary waste product is ammonia
5. Response: Receptor cells = sound, light, external stimuli Nerve cells => nervous system
6. Movement:
* Most animals move

26. 7. Reproduction: Most reproduce sexually = genetic diversity
Many invertebrates can also reproduce asexually to increase their numbers rapidly

27. Body Symmetry - the body plan of an animal, how its parts are arranged
Asymmetry - no pattern (corals, sponges)
Radial Symmetry - shaped like a wheel (starfish, hydra, jellyfish)
Bilateral Symmetry - 
has a right and left side (humans, insects, cats, etc)

28. Identify the Symmetry

29. Cephalization - an anterior concentration of sense organs (to have a head)
*The more complex the animals becomes the more pronounced their cephalization

30. Anatomical Terms: anterior - toward the head
posterior - toward the tail
dorsal - back side
ventral - belly side

31. Segmentation
- "advanced" animals have body segments, and specialization of tissue (even humans are segmented, look at the ribs and spine)

32. Trends in Animal Evolution
Early Development:
Animals begin life as a zygote (fertilized egg)

33. The cells in the zygote divide to form the BLASTULA - a hollow ball of cells

34. The blastula pinches inward to form three GERM LAYERS
Examples for each??

35. *Most invertebrates
*All vertebrates &
Echinoderms (invertebrates)

36. Body Cavities
Coelom – lies between the digestive tract and the body wall
Important because it provides space in which internal organs can be suspended
Provide room for internal organs (growth)
Some cavities have fluids that are involved in circulation, feeding & excretion
Acoelomates – no coelom ex. flatworm
Pseudocoeloms – similar to coelom, but lack a mesoderm ex. roundworm