Yes, a sea anemone has a single opening to the digestive tract. This single opening acts as a mouth for feeding and an anus for excreting waste products.
The phylum that has the entrance and exit as the same in the digestive tract is called Cnidaria. Organisms in this phylum, such as jellyfish and sea anemones, possess a gastrovascular cavity that serves both as a mouth and an anus. This simple digestive system allows for the intake of food and the expulsion of waste through a single opening.
No, it only affects the sea lamprey.
how does the lamprey effect human
the sea lamprey came from the East side of the world
They don't.
you die
a parasite
20 years
Sea Lampreys belong to the order Petromyzontiformes.
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it came from the Atlantic ocean and then went to the great lakes in 1936.