Simple Invertebrates Foldable
Who Am I?
Liver Fluke
A fluke is a type of small, parasitic flatworm that feeds on
the blood or body of its host. The sheep liver fluke attacks
sheep and cattle and has even been known to infect
humans, making them seriously ill.
The Sheep liver fluke's eggs spread when they are eaten
by pond snails. The eggs hatch into larvae which then
eventually leave the snail. When a sheep eats a fluke, the
fluke migrates to the sheep's liver where they grow into
adult flukes. Humans can catch liver flukes by eating the
improperly cooked meat of an infected animal. (Source:
kidsbiology.com)
Other types of Flukes
• Blood Fluke:
https://www.youtube.com/watch?v=VnlYUe57Lr
0
• Lung Fluke:
https://www.youtube.com/watch?v=uFQwMPcPr4
• Liver Fluke and Ants:
http://video.nationalgeographic.com/video/paras
ites_flukelarvae
Phylum Porifera
• Body Plan:
Porous
• Symmetry:
Asymmetry
• CELLS only!
• Feeding:
Filter Feeders; water moves
through pores to collar cells
• Examples:
Sponge
Phylum Porifera
• Drawing: Sponge
•
•
•
•
A= Collar Cell
C= Pore
E= Jelly-like Cell
F= Spike Cell
Phylum Cnidarian
• Body Plan: Polyp and Medusa
• Symmetry: Radial
• Cells and Tissues
• Feeding: Tentacles with stinging cells
• Examples: Sea Anemone, Coral, Hydra, Jellyfish
Phylum Cnidarian:
RADIAL SYMMETRY
Sea Anemone (Polyp)
Jellyfish (Medusa)
Phylum Platyhelminthes
• Body Plan:
FLAT body
• Symmetry:
Bilateral
• Cells & Tissues & Organs & Systems
• Feeding:
Free-living or Parasites
• Examples:
(P)
Flukes (P), Planarian (FL), Tapeworm
Phylum Platyhelminthes:
BILATERAL SYMMETRY
Phylum NematOda
• Body Plan:
ROUND body
• Symmetry:
Bilateral
• Cells & Tissues & Organs & Systems
• Feeding:
Free-living & Parasites
• Examples:
Pinworm (P), Heartworm (P),
Vinegar Eels (FL)
Phylum Nematoda:
BILATERAL SYMMETRY
Which Phylum?
1
4
2
5
3
6
Which Phylum? ANSWERS
1 Cnidaria
2 Nematoda
4 Nematoda 5 Cnidaria
3 Porifera
6 Platyhelminthes