THE ANIMAL KINGDOM
Characteristics of ALL
Animals…
• Multi-cellular
•Eukaryotic (nucleus)
•Consumers
•Mobility
PART 1: Simple Animals
1. SPONGES:
• Most simple of all animals
• Feed, breathe, and eliminate
waste through pores
• Traps what it needs as
water flows thru
• Sexual and
asexual reproduction
2. STINGING-CELL ANIMALS
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Animals have stinging tentacles
Sexual reproduction
Have “mouth” structure
Radial symmetry
Anemone
Jellyfish
Hydra
Symmetry
• Radial
Originates from a
center point
• Bilateral
Divided into 2 equal
sides
3. Flatworm
• Flat in shape
• Bilateral symmetry
• Cephalization
– “head” structure
• Example:
a. Tapeworm
– Parasitic
– Intestines
– Can be very long
b. Planaria
– non-parasitic
– found in freshwater
– mouth/anus same structure
4. Roundworm
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Round in shape
Separate mouth and anus
Bilateral symmetry
Example:
– Ascaris
• Parasitic roundworm
• Causes death
in 3rd world countries
5. Segmented Worms
• Body divided into “segments”
• Live anywhere (land, fresh + salt water)
• Examples:
Earthworm
Leech
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6. Soft-Bodied Animals
(a.k.a. Mollusks)
Soft body
Usually protected with a hard shell
Muscular foot for movement
Examples: clam, oyster, scallop, slug,
snail
octopus