Download - Invertebrate Groups
Invertebrate Groups
1. Sponges
Sponges
• Sponges pump water through the hole at the top and filter tiny (microscopic) particles of food that are floating in the water
• You can blend them up and they will re-assemble as they were before!
2. Coelenterates
http://www.youtube.com/watch?v=Dh7azi3fFQY
Many have stinging tentacles-includes jellyfish and coral
Brain Coral
3. Flatworms
• FLAT animals. Not what we consider ‘WORMS’
• http://www.youtube.com/watch?v=gOs650f6c5M
4. Nematodes
THIS GROUP includes worms (roundworms, pinworms).
Some are parasitic (What is a parasite!?)
Don’t believe me!?http://www.youtube.com/watch?v=gOs650f6c5M
5. Molluscs
• Soft-bodied animals that are often protected by an outer shell
e.g. Snails, Oysters, Clams, Squid and Octopus
SMART OCTOPUS
CONE SNAIL
6. Annelids
• This group includes roundworms (the one you see often) and leeches!
The Largest Roundworm...
• http://www.youtube.com/watch?v=gOs650f6c5M
7. Arthropods
• This is a HUGE group that includes 80% of the earth’s animals!!
• All have jointed legs
8. Echinoderms
• This group includes STARFISH, urchins, sea cucumbers and sea horses!
EVER SEEN A SEA STAR EAT!?
Task
• Write a paragraph highlighting your knowledge of organisms using ALL of the words below...
ORGANISM, INVERTEBRATE, CLASSIFY, LIVING, VERTEBRATE, NON-LIVING, CHARACTERISTICS, EXAMPLE, COLD-BLOODED, WATER, LAND, BIRD, ARTHROPOD, HUMAN