they are circum global but entirely Aquatic
this phylum are charaterised by having symmetrical and are They possess and have a , they posses a single .
they have alternating generation, with a:
Asexual polypoid
Sexual medusiod
Asexual Larvae
leciothrophic larvae
precociol
they have cilliate planula larvae
Describe what a dipoblastic structure is?
Outer ectoderm, Inner entoderm, Separated by noncellular mesenchyme.
Endoderm, epidermis and cytoplasm
single celled membrane
has a three structured system
Add the labels
Check the type of cnidae
pentrant
glutinant
volvent
volitile
kickstart
propeller
the cnidarian is produce in the layers from cnidoblasts, becoming cnidocytes.
what type of feeders are they
Ambush predators
suspension
filter
forager
autotrophic
they have nematocyst covered feeding tentacles
prey are digested in completed in food .
polypoid, is a stage which occurs in classes, its s organism that reproduce by plates which produce , they are symmetrical.
The medusoid occur in all classes, the are structures they use to move through the they are also symmtrical, these reproduce and are usually .
label the diagram
Name all the symbiosis relationships shown by cnidarian?
Zooxanthellae
fish
crustaceans
echinoderm
porifera
mollusca
cetaceans
class Hydrozoa, these are the cnidarians with generations, they have stage may be where the small medusa stay attached to the polyp
Class Scyphozoa, is the they're exclusively . dominant and medusa phase
Cubozoa contain the order of box jelly fish (), they are largely restricted to the , and they only produce a . they have well developed eye and also have nematocysts
what classes are bioluminescence common in
Hydrozoa
Scphozoa
alcyonaria
Zoantharia
holothoriodia
bioluminescence produce luciferin de novi, reacts with oxygen to produce light
The class Alcyonaria, contains sea pens, and soft coral, they are colonial so there non-polymophism. they also have no medusal stage. they have an syupport system and tentacles, arranged in .
Class Zoantharia, which are and hard corals or modularly colonial and also have no medusa stage, have support with tentacles in multiples of
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