Mutualism Relationships. Like humans, other living species, such as animals, plants and other bacteria too, help each other for better survival. No living organism can survive in isolation. All the living organisms depend on each other for food or shelter.
The definition of low is  something with little height, emotionally depressed, below the surface level, quiet or deep in pitch. An example of low is fog resting on the ground. An example of low is someone feeling sad. An example of low is speaking quietly.
Mean lower low water. The United States' National Oceanic and Atmospheric Administration uses mean lower low water (MLLW), which is the average height of the lowest tide recorded at a tide station each day during a 19-year recording period, known as the National Tidal Datum Epoch.