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INVERTEBRATES
Group Picture Features Examples
PORIFERA Body full of pores and channels. It cannot move
Sponge
CNIDARIA Live in the sea Have tentacles with stinging cells to catch food.
Jellyfish, Anemone Coral
MOLLUSCS
- GASTROPODS
- BIVALVES
- CEPHALOPODS
Body not in segments Most have shells Move on a muscular foot
Snail Clam Mussel Octopus
FLATWORMS Flat body
With segments
Taenia
ROUNDWORMS Long rounded and thin body No Segments
Intestinal roundworm
SEGMENTED
WORMS
Long tube shaped body With segments (or rings)
Earthworm Leech
ECHINODERMA 5 Arms or star shaped pattern on their bodies Spiny Skins
Starfish Sea urchins
ARTHROPODS
• MYRIAPODS
• CRUSTACEANS
• ARACHNIDS
• INSECTS
Jointed legs Body with outer skeleton (exoskeleton)
Centipede Millipede Crab Spider Beetle
Work alone ( solo ):
Underline (subraya) the words you don’t understand.
In group:
Share (comparte) the words with your peers. Do you know some words your partners don’t? Write the translations on your sheet.
Work alone:
Choose (elige) the better feature for each group.
In groups:
Have you chosen (elegido) the same? Try to convince your peers that you are right (tienes razón).
In pairs:
Ask (pregunta) your peer to classify some animals, for example:
Question: “Which group do (jellyfish) belong to?” (¿A qué grupo pertenecen las medusas?)
Answer: “It belongs to (Cnidaria)” At home:
Look for some more examples of Moluscs; Crustaceans and Insects on the Internet. Make a glossary. (Word and translation, for example sponge: esponja)
