In studying a species of fish, a structure is discovered that has no apparent function. If this is a vestigial structure, what would you find in at least some relatives of this fish? Why? *       The structure should look different and also have no function.       A similar structure should be present, but it would be larger and have a function.       The structure should be present and also have no function.       No answer       The structure should be absent from fossils of ancestors of this species.

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Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.