Final answer:
Plants, animals, and microorganisms all have the potential to contribute to the bioremediation of sensitive areas like shorelines and wetlands. They each have unique ways to stabilize environments and mitigate pollution.
Step-by-step explanation:
The question regarding which of the following have potential to provide clean-up in sensitive areas such as shorelines and wetlands relates to the concept of bioremediation. All the options provided, such as plants, animals, and microorganisms, play a role in cleaning up sensitive environments. Plants can help by absorbing toxic metals from soils and transforming pollutants into less harmful substances; animals contribute by, for example, eating plant most matter that could otherwise become undesirable under certain conditions; microorganisms, especially prokaryotes, are well-known for their ability to clean up pollutants by metabolizing them into less harmful substances. An example of this might include certain bacteria degrading oil after an oil spill, as seen in the Exxon Valdez cleanup effort. Considering these points, the answer to which entities have the potential to clean up sensitive areas is (4) All of the above.