1. THE ANIMAL KINGDOM
Ms. Fisher

2. Characteristics of ALL Animals…
Multi-cellular
Eukaryotic (nucleus)
Consumers- can’t make their own
food, receive energy by eating other
organisms
Mobility
**Most animals have symmetry
All animals belong to one of two groups:
Invertebrates or vertebrates(chordates)
complex
This chapter we are discussing invertebrates, simple animals!

3. PART 1: Simple Animals Invertebrates
1. SPONGES: no symmetry
Most simple of all animals
Feed, breathe, and eliminate
waste through pores
Traps what it needs as
water flows thru
Sexual and
asexual reproduction

4. 2. STINGING-CELL ANIMALS
Animals have stinging tentacles
Sexual reproduction
Have “mouth” structure
Radial symmetry
Anemone
Jellyfish
Hydra

5. Symmetry Radial Originates from a center point
Bilateral Divided into 2 equal sides (all vertebrates
& some invertebrates
have bilateral)

6. 3. Flatworm Flat in shape Bilateral symmetry Cephalization Example:
“head” structure
Example:
a. Tapeworm
Parasitic- live on another
living thing
Intestines
Can be very long
b. Planarian
non-parasitic
found in freshwater
mouth/anus same structure

7. 4. Roundworm Round in shape “hookworm” Separate mouth and anus
Bilateral symmetry
Example:
Ascaris
Parasitic roundworm
Causes death
in 3rd world countries

8. 5. Segmented Worms (most complex of all worms)
Body divided into “segments”
Live anywhere (land, fresh + salt water)
Examples:
Earthworm Leech
parasite

9. Earth Worm
Grinds food
Digest
Holds food

10. Agenda: Friday
Objective: Identify the 9 Major phyla of animals and give an example of each
Sponges Soft Bodied/Mollusca 2.Stinging Jointed-leg/Arthropoda
3. Flatworms Spiny Skin/Echinoderms
4.Round Worms Chordate
5. Segmented Worms Major Phyla.docx

11. Soft-Bodied Animals (a.k.a. Mollusks)
Soft body- have a soft body protected by a hard shell- also invertebrates
Usually protected with a hard shell
Muscular foot for movement
Examples: clam, oyster, scallop, slug,
snail octopus

12. Soft bodied Animals:
Grouped into 3 classes based off of the following traits:
Kind of foot
If a shell is present
And # of shells

13. 1st Class: Snails & Slugs
Wide muscular foot
Single shell-snails, slugs no shell * differ
eyes

14. 2nd Class: Clams Two shells
Foot shaped like a shovel & is used to bury themselves in sand

15. 3rd Class: Octopus & Squid
No shell
Muscular foot divided into arms
Move by shooting a jet of water

16. Review: Features of soft bodied animals/Mollusca:
All are invertebrates
Most have one or two shells
Most have a foot they use to move about

17. INVERTEBRATES 7. Phylum: Arthropods Phylum: Sponges
Phylum: Stinging cell
Phylum: Flatworm
Phylum: Roundworm Simple Animals
Phylum: Segmented worms
Phylum: Mollusk (soft-bodied)
7. Phylum: Arthropods
Class
Insecta
Arachnid
Crustacean Complex, Invertebrates
8. Phylum: Echinoderms
Starfish

18. Arthropods (Jointed-legs)
Invertebrate
Largest phyla (3/4 of all animals on earth!!)
Exoskeleton
Segmented body
Head
Thorax
Abdomen
Bilateral symmetry
Appendages
Legs, wings, antennae
Grow by molting

19. Complex Invertebrates:
7. Arthropod Class: Arachnid
8 legs ( 4 pairs)
No antennae
2 body segments
Spiders, scorpions, ticks

20. Arthropod Class: Insecta
6 legs (3 pairs)
3 body segments
2 pairs of wings (most)

21. Arthropod Class: Crustacea
Mostly Marine animals
2 pairs of Antennae
4 pairs of walking legs
Some...1 pair of “pinchers”
Crab, lobster, shrimp,
crayfish

22. 8.Spiny skin/ Echinoderm
Radial symmetry
“Spines” on skin
5-part body
Tube feet used for
movement, feeding, attachment.
Example: starfish

23. ALL ARE INVERTEBRATES NOW, TO DISCUSS VERTEBRATES…
Phylum: Sponges
Phylum: Stinging cell
Phylum: Flatworm
Phylum: Roundworm
Phylum: Segmented worms
Phylum: Mollusk (soft-bodied)
7. Phylum: Arthropods
Class
Insecta
Arachnid
Crustacean
8. Phylum: Echinoderms
Starfish
NOW, TO DISCUSS VERTEBRATES…

24. 9. Vertebrates (Chordates)
Complex Animals
9. Vertebrates (Chordates)