In animals like Annelids, Molluscs, organs have associated to form functional systems, each system concerned with a specific physiological function. This pattern is called ________ system level of organization.

A Organ
B Open
C Closed
D Coelom

Correct Answer: Organ

In animals like Annelids, Molluscs, organs have associated to form functional systems, each system concerned with a specific physiological function. This pattern is called organ system level of organization.
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#General Knowledge #Biology

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