Symmetry
Type of symmetry that is like a bicycle wheel.
Radial
Sponges have no backbone, making them these
Invertebrates
Budding
Medusae
True or false: some cnidarians go through both types of reproduction
True!
Type of symmetry that is splitting something down the middle
Bilateral
Sponges have these holes all over their body
Pores
Larva
Sea anemone belong to this group of cnidarians
Polyps
Sea anemones can do this, making two identical copies
Split down the middle
Examples of radial symmetry animals
Starfish, jellyfish, sea urchins
Sponges have these small structures to provide support and protection
Sponges get moved by these when they are very young. This is also what brings sponges their food and oxygen.
Currents
Cnidarians have these structures, which are on top of polyps and below medusae
Tentacles
Cnidarians move for these two purposes
Avoid danger and get food
Examples of bilateral symmetry animals
Humans, tigers, bears, dogs, etc
This is in the middle of a sponge, and water flows through it to give food and oxygen
Central cavity
Sponges attach to these underwater
Hard surfaces
Cnidarians have these cells that can sense dangers and attack prey or predators
Stinging cells
As some polyps die, they solidify and turn into these underwater structures
Coral reefs
Third type of symmetry that animals can have. Nothing splits evenly in any way.
No symmetry
These cells have little whips on one end, which move water and trap food.
Collar cells
This is the phylum that sponges belong to, which is similar to the word "pores"
Porifera
Stinging cells have this substance within them, which can incapacitate prey
This creature is made up of over 1000 cnidarians. They act like one organism and have different jobs.
Portuguese Man-of-War