Invertebrates
All 8 phylums hour 7 Evan Mennen
Sponges
can’t move
- gets food from environment around it.
- between inner and outer layer there is a jelly-like layer
- grow at almost any depth
- grow on hard surfaces
- shaped like fingers, tree branches or round
- filters water to get its food
- 5000 known species
-no real digestive system
Adaptation - body is a network of tiny pores and canals that allow water to filter through to obtain food because they don’t move.
Worms
Round worms
tube like body. To small to be seen. One shovel full contains about 1 million roundworms. Very numorus environments. Digestive system. Nervous system.
Flatworms
most live in fresh water. They are usually small. Stay out of light. Found under rocks and mud. They have sex organs. Mouth digestive system. Regenerate body parts.
Segmented worms
tube like body. To small to be seen. One shovel full contains about 1 million roundworms. Very numorus environments. They are connected segments.
Cnidarians
Cnidarians
Ability to sting. Most live in sea water. They have radial symmetry. Shaped like umbrellas and sea anemones. Has a hollow pouch.