1. Standard 1: Invertebrates
Zoology
Standard 1: Invertebrates

2. List 5 characteristics of members of the Kingdom Animalia.
Warm-up
List 5 characteristics of members of the Kingdom Animalia.

3. Characteristics of Animals
Eukaryotes
Multicellularity
Heterotrophy
Sexual reproduction
Diploidy
Specialized tissues
Blastula formation
Mobility -No cell wall

4. Heterotrophy
Multicelluar
Blastula Formation
Diploidy
Mobility
Tissues

5. Animal Concept Map Mobitiy Tissue Primary Tissue Layers
Sexual Reproduction
Body Plan
External
Bilateral
Symmetry
Radial Symmetry

6. Invertebrate Portfolio
Phyla Achor Docs
Invertebrate Species Project (Individual)
Phylum Presentation (Group)
Lab Notes (12 specimens)

7. Invertebrates Invertebrates are animals that do not have a backbone.
Invertebrates are cold-blooded.
Eight Major Phylums

8. INVERTEBRATES = No Backbone

9. Eight Major Phyla Porifera: Sponges
Cnidaria: Jellyfish, Hydra, Anemone, Coral
Platyhelminthes: Flatworms
Nemotoda: Roundworms
Arthropoda: Insects, Crustaceans, Spiders, Millipedes, Centepedes
Mollusca: Clams, snails, Slugs, Nautilus, Octopus
Annelida:Segmented worms, leeches
Echinodermata: Sea Stars, Sea Urchins

10. Phylum Porifera: Sponges

11. Symmetry: Asymmetrical
No fixed arrangement of body parts
Lack cephalization (no head!)
No symmetry exists

12. Choanocytes line the gastrovascular cavity & capture food
Amebocytes digest & distribute food

13. Specialized Cells
Choanocytes (collar cells) line inside of body cavity
Have flagella that spins to pull in water & food
Collar traps plankton (food) from water
Collar

14. Sponge Feeding
Filter feeders
Feed on Plankton
Filter Feeders

15. Water Flow Through the Sponge
WATER OUT
Water Flow Through the Sponge
WATER IN
Osculum

16. Sponge Reproduction
Sponges reproduce asexually by budding

17. Sponge releasing eggs & sperm
Sponge Reproduction
Sponges are hermaphrodites (produce both eggs & sperm)
Sponges reproduce Sexually by releasing eggs & sperm
Cross-fertilize each other’s eggs
Sponge releasing eggs & sperm

18. Skeletal Structure of the Sponge
Spicules are hard spear or star-shaped structures
Skeleton made of network of protein fibers called Spongin

19. Sponge Skeletons
Silica Spicules
Limestone Spicules
SPONGIN

20. Sponge Skeletons
VENUS FLOWER BASKET
SPICULES

21. Sponge Taxonomy Class Calcarea Calcareous Sponges
Sponges with calcium carbonate spicules only.
Spicules are straight or have 3-4 rays
These sponges diversity is greatest in the tropics, predominantly in shallow waters

22. Class Hexactinellida Glass Sponges Glass sponges
Characterized by siliceous (silica) spicules consisting of six rays intersecting at right angles

23. Skeletons are spongin fibers and/or siliceous spicules
Class Demospongiae
Demosponges
More than 90 % of the 5,000 known living sponge species are demosponges.
Skeletons are spongin fibers and/or siliceous spicules
Yellow sponge growing on a wall
on a Caribbean reef.

24. Branching Tube Sponge

25. Stove Pipe Sponge

26. Vase Sponges

27. Barrel Sponges

28. Ball Sponges

29. Rope Sponges

33. The Shape of Life What was the FIRST animal?
How can we find this out and prove it?
The Shape of Life “Origins”