17.Cnidarian identity card.
How are they characterized
according to examples of
representing beings, basic
morphology, type of
symmetry, germ layers and
coelom, digestive system,
respiratory system, circulatory
system, excretory system,
nervous system and types of
reproduction?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Examples of representing :
jellyfish, corals, sea , hydra.
Basic morphology: or medusa.
Type symmetry: radial. Germ
and coelom: diploblastics,acoelomate.
system: incomplete.
Respiratory : nonexistent.
Circulatory system: .
Excretory system: nonexistent.
system: diffuse. Types reproduction:
asexual and with larval stage
metagenesis.