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Why are Cnidaria called that way?
They get their name from cnidocytes
Name the three main classes of Cnidaria
Hydrozoa
Scyphozoa
Anthozoa
What type of symmetry do cnidarians exhibit?
Radial symmetry
How many cell layers does Cnidaria have and how we call it
It has 2 therefore we call it diplobastic
Name the dermal layers in Cnidaria
Ectoderma and endoderma
What is mesoglea(also tell its place)
is a jelly like substance between ectoderma and endoderma
Which dermal layer it’s used to help with digestion
Endoderm
How many body forms does Cnidaria and name them
Polyp and Medusa
how do Cnidarians move
They move with the contractile cells in the epidermis and endodermis
For what do they use Cnidocytes
To capture animals for food
What is the name of the stage that is present in sexual reproduction
Larval stage(planula)
How is the system that helps them exchange gases called
They don’t have any kind of system bc they aren’t that complex this is why they exchange gases with simple diffusion
Based on their diets,what classification do cnidarians fall under
Animals
What is the main function of the gastrovascular cavity in cnidarians
Digestion and circulation of nutrients
What type of nervous system do Cnidarians possess
Nerve net
Which class includes corals and sea anemones
Anthozoa
What role do zooxanthellae play in coral reefs
They provide nutrients through photosynthesis
All Cnidarians have ____ but no____
Tissue,organs
What is zooxanthellae
Is a symbiotic relationship between Anthozoa and microscopic algae
Name a specie from hydrozoa(just not hydra)
Obelia…