1. A hollow body.
2. Cells are not specialized into tissues.
What are two characteristics of sponges?
100
Jellyfish, Hydra, Anemone, and Coral
What are the four classes of cnidaria?
100
Flatten body and distinct head and tail. May be free-living or live as internal parasites. Head with sucking mouthparts surrounded by many hooks.
What are characteristics of flatworms?
200
1. Eukaryotic cells
2. Multicellular
3.Lack chlorophyll and must rely on eating other organisms.
What are the three characteristics of animals?
200
Tiny holes on the outside of the sponge.
What are pores?
200
1.Hollow sac-like body that occurs in two forms.
2.Cells are specialized into tissues.
3.Only one opening into the body.
What are three characteristics of cnidarians?
200
Planaria and tapeworms.
What are flatworms?
300
Cnidarians and Echinoderms
What are some examples of radial symmetry?
300
Growing lost or broken body parts.
What is regeneration?
300
Medusa and Polyp
What are the two body types of cnidaria?
300
Belong the phylum Nematoda, and they may be free-living or live as parasites.
What are some characteristics of roundworms?
400
Animals with a bilateral symmetry can be divided into two matching sides, a right and a left side.
Animals with radial symmetry have their body parts arranged around a central azis, much like the spokes on a wheel.
What is the difference between bilateral and radial symmetry.
400
They take in water and take in the nutrients and everything it needs and spits the bacteria out.