1. By: Kaden C. Jacqueline M.
Cnidarians
By: Kaden C. Jacqueline M.

2. Phylum: Cnidaria Example: phylum under Kingdom Animalia
over 11,000 species
aquatic environments: they are predominantly marine. 
Jellyfishes
Sea Fans
Sea anemones
Hydras
Coral

3. Body Symmetry and Body Plan
Depending on the type they could have a bilateral, radial, or no symmetry.

4. Cnidaria feeding Some are filter feeders
Uses Tentacle Cnidocytes Nematocysts by injecting poison cells into prey
prey such as crustaceans and fish pass by and touch their tentacles.
 they poison them and draw them toward their mouths to be digested.
Predation, or carnivore is the prey on another animal.

5. Circulation
Diffusion
From water to cells
Cells back to water

6. Cnidaria Excretion
 individual cells carrying the waste back into the water.
Diffusion 

7. Cnidaria Response nerve nets with specialized cells called Cnidocytes
 poison prey and cause a jellyfish sting.

8. Movement Some don’t move Other use weak muscles to somersault
Polyp - like a sea anemone with a columnar body with the mouth uppermost surrounded by a ring of tentacles. - stationary
Medusa - free-swimming sexual form of a coelenterate such as a jellyfish, typically having an umbrella- shaped body with stinging tentacles around the edge.

9. Reproduction Both asexually and sexually
Males release sperm into the water 
Females absorb it
Reproduction

10. Respiration Diffusion
Individual cells obtain oxygen directly from water

11. Examples
Polyp like a sea Anemone 
Medusa like a jellyfish