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Is this egg fertilized or not fertilized
Not fertilized

What is pictured?
Starfish cleavage

What phylum do these creatures belong to?
Phylum Echinodermata

Are these Star fish legs fertilized or not fertilized?
Fertilized

What larval stage is pictured
The bipinnaria stage

What larval stage is pictured below?
The brachiolaria stage

What structure is pictured?
Starfish Pedicellariae

What class and common names belong to these organisms?
Class Crinoidea/ Sea Lillies and Feather Stars

What class do sea cucumbers belong to?
Class Holothuroidea
What class are Star fish and Sea stars apart of?
Class Asteroidea