Phylum Cnidaria Flashcards
1
Q
What are the 3 classes within phylum cnidaria?
A
1) Hydrozoa
2) Schyphozoa
3) Anthozoa
2
Q
what are the hydrozoans?
A
hydra
3
Q
what are the scyphozoans?
A
jellyfish
4
Q
what are the anthozoans?
A
sea anemones and corals
5
Q
name one feature of corals?
A
they have a calcium carbonate ‘skeleton’
6
Q
describe Hydrozoa?
A
small and plant like - most form colonies
7
Q
what symmetry are cnidarians?
A
radially symmetrical
8
Q
how many body layers do cnidarians have?
A
2
