Intestinal gland secretes intestinal juice ,it contains enzymes and their role is to decompose food more and then conduct them into the large intestine or by intestinal absorption to the blood
Answer:
In a balanced ecosystem, they provide food for a wide range of sea creatures.Phytoplankton, also known asmicroalgae, are similar to terrestrial plants in that they contain chlorophyll and require sunlight in order to live and grow.
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