1. How Do Invertebrates Differ?

2. Sponges look like plants bodies are full of holes
skeletons made of spiky fibers
gets it food when water flows through the holes – food becomes trapped

3. Corals, Hydras, & Jellyfish
corals – soft, tube-like body with single opening surrounded by tentacles
sea anemones – tentacles help it move from place to place & trap food
jellyfish – drifts through water, uses tentacles to catch food

4. Worms tube-shaped invertebrates
flatworms – flattened body (ex: tapeworm can live inside body of other animals)
roundworms – round bodies (can make other animals sick)
segmented worms – body divided into segments (ex: leeches, earthworms)

5. Starfish & Sea Urchins have tiny tube feet
body arranged around a central area

6. Arthropods jointed legs & exoskeletons molts – sheds old exoskeleton
ex: lobsters, insects
insects – body divided into 3 parts, 6 legs, two pairs of wings
Spiders – have 8 legs, jaws, fangs

7. Review Questions? What are eight of the groups of invertebrates?
Give 2 traits of 2 groups of invertebrates.
Would leeches and ticks help stop bleeding?