Invertebrates
Sponges arthropods. Felicity
Sponges
Characteristics
- reproduce asexually
- can’t move once they attach as adults
- 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
Arthropods
-arthropods are insects
-often they seem to be pests
-arthropods pollinate
-some arthropods help farmers like the lady bug
-arthropods are a food source to most animals
-arthropods produce goods that can be sold
-fewer then one percent of arthropod species are harmful