Tissues are groups of similar performing the same function.

A tissue is a group of similar cells together. An organ is groups of two or more tissue. An organ system is a group of organs.

Explanation:

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

d) center of the mid-ocean ridge

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