1. Invertebrates CONTENTS HOME CONTENTS RESOURCES ACTIVITY LINKS
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2. Contents Invertebrates Porifera and Cnidaria Porifera Cnidaria
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Contents
Invertebrates
Porifera and Cnidaria
Porifera
Cnidaria
Platyhelminthes
Characteristics
Nematodes
Characteristics
Annelids
Characteristics
Molluscs
Characteristics
Classification
Arthropods
Characteristics
Classification
Orders of insects
Insect mouths
Metamorphosis
Echinoderms
Characteristics
Classification
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3. Resources HOME CONTENTS RESOURCES ACTIVITY LINKS
What are porifera like?
What are cnidaria like?
What are Platyhelminthes like?
What are Nematodes like?
What are Annelids like?
What are molluscs like?
How are molluscs classified?
Animation: Arthropods
What are arthropods like?
How are arthropods classified?
Orders of insects
What are insect mouths like?
Metamorphosis
of the monarch butterfly
What are echinoderms like?
How are echinoderms classified?
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Interactive activity: What do you know about invertebrates?
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4. Porifera have no organs. pores
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What are porifera like?
Sponges
water
osculum
channels
atrium cavity
Porifera have no organs.
pores
water + nutrients
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5. gastrovascular cavity carnivorous
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What are cnidaria like?
ENLARGE IMAGE
radial symmetry
soft body
tentacles
gastrovascular cavity
carnivorous
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6. gastrovascular cavity carnivorous
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What are cnidaria like?
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Corals
radial symmetry
soft body
tentacles
gastrovascular cavity
carnivorous
jellyfish
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7. Taenia tapeworm (parasite)
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What are platyhelminthes like?
Platyhelminthes (flatworms)
flat bodies
divided into rings
hermaphrodites
soft body
bilateral symmetry
no skeleton
Taenia tapeworm (parasite)
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8. Nematodes (roundworms)
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What are nematodes like?
Nematodes (roundworms)
Pinworm
cylindrical bodies
no segments
no respiratory system
examples: trichina worms, pinworms
soft body
bilateral symmetry
no skeleton
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9. Annelids (segmented worms)
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What are annelids like?
body wall
Annelids (segmented worms)
digestive tube
cylindrical bodies
divided into segments
some are hermaphrodites
coelom
setae (hairs)
head
segments
soft body
bilateral symmetry
no skeleton
clitellum
Earthworm
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10. carnivores and herbivores lungs (terrestrial molluscs)
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What are molluscs like?
bilateral symmetry
soft body
carnivores and herbivores
lungs (terrestrial molluscs)
gills (aquatic molluscs)
metamorphosis
valves
head
visceral mass
foot
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11. carnivores and herbivores lungs (terrestrial molluscs)
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What are molluscs like?
bilateral symmetry
soft body
carnivores and herbivores
lungs (terrestrial molluscs)
gills (aquatic molluscs)
metamorphosis
valves
shell
lung
eyes
visceral mass
mouth
stomach
ENLARGE IMAGE
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12. carnivores and herbivores lungs (terrestrial molluscs)
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What are molluscs like?
bilateral symmetry
soft body
carnivores and herbivores
lungs (terrestrial molluscs)
gills (aquatic molluscs)
metamorphosis
valves
shell
lung
eyes
visceral mass
mouth
stomach
radula
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13. Bivalves Gastropods Cephalopods How are molluscs classified? slug
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How are molluscs classified?
Bivalves
slug
scallop
snail
mussel
Gastropods
limpet
octopus
Cephalopods
nautilus
cuttlefish
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14. Animation: Arthropods
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Animation: Arthropods
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15. What are arthropods like?
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What are arthropods like?
bilateral symmetry
exoskeleton
feeding habits vary
trachea (terrestrial arthropods)
gills (aquatic arthropods)
moulting and metamorphosis
thorax
head
abdomen
ENLARGE IMAGE
Wasp
ENLARGE IMAGE
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16. What are arthropods like?
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What are arthropods like?
wings
ocellus
bilateral symmetry
exoskeleton
feeding habits vary
trachea (terrestrial arthropods)
gills (aquatic arthropods)
moulting and metamorphosis
compound eye
antenna
mouth parts
legs
ENLARGE IMAGE
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17. What are arthropods like?
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What are arthropods like?
bilateral symmetry
exoskeleton
feeding habits vary
trachea (terrestrial arthropods)
gills (aquatic arthropods)
moulting and metamorphosis
abdomen
ENLARGE IMAGE
legs
cephalothorax
Spider
chelicerae
pedipalp
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18. How are arthropods classified?
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How are arthropods classified?
Arachnids
Insects
Crustaceans
Myriapods
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19. Orders of insects Hymenoptera Diptera Coleoptera Dermaptera Orthoptera
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Orders of insects
Hymenoptera
Diptera
Coleoptera
Dermaptera
Orthoptera
Hemiptera
Lepidoptera
Odonata
Siphonaptera
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20. What are insect mouths like?
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What are insect mouths like?
Ants have mouths
for chewing.
Butterflies have mouths
for sucking.
Bees have mouths
for chewing and sucking.
Mosquitoes have mouths
for piercing and sucking.
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21. What are insect mouths like?
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What are insect mouths like?
GO BACK
Ants have mouths
for chewing.
Butterflies have mouths
for sucking.
Bees have mouths
for chewing and sucking.
Mosquitoes have mouths
for piercing and sucking.
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22. What are insect mouths like?
HOME
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What are insect mouths like?
GO BACK
Ants have mouths
for chewing.
Butterflies have mouths
for sucking.
Bees have mouths
for chewing and sucking.
Mosquitoes have mouths
for piercing and sucking.
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23. What are insect mouths like?
HOME
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What are insect mouths like?
GO BACK
Ants have mouths
for chewing.
Butterflies have mouths
for sucking.
Bees have mouths
for chewing and sucking.
Mosquitoes have mouths
for piercing and sucking.
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24. What are insect mouths like?
HOME
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What are insect mouths like?
GO BACK
Ants have mouths
for chewing.
Butterflies have mouths
for sucking.
Bees have mouths
for chewing and sucking.
Mosquitoes have mouths
for piercing and sucking.
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25. THE METAMORPHOSIS OF A MONARCH BUTTERFLY
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The Metamorphosis of a Monarch butterfly
THE
METAMORPHOSIS
OF A
MONARCH
BUTTERFLY
SANTILLANA
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26. THE METAMORPHOSIS OF A MONARCH BUTTERFLY END
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The metamorphosis of a Monarch butterfly
THE
METAMORPHOSIS
OF A
MONARCH
BUTTERFLY
END
SANTILLANA
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27. What are echinoderms like?
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What are echinoderms like?
radial symmetry in adults
internal skeleton of plaques
carnivores
most breathe through skin
metamorphosis
arms
ambulacral system
symmetrical planes
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28. What are echinoderms like?
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What are echinoderms like?
radial symmetry in adults
internal skeleton of plaques
carnivores
most breathe through skin
metamorphosis
arms
ambulacral system
symmetrical planes
ambulacral feet
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29. How are echinoderms classified?
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How are echinoderms classified?
Echinoidea
Ophiuroidea
sea urchin
ophiura
Stelleroidea
Holothuroidea
Crinoidea
starfish
sea cucumber
sea lily
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30. Interactive activity: What do you know about invertebrates?
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Interactive activity: What do you know about invertebrates?
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31. Links The Shape of Life Virtual Worm Tour HOME CONTENTS RESOURCES
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The Shape of Life
GO TO WEBSITE
Virtual Worm Tour
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