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.
This is what he said: In this presentation I will talk about low vision and its relation to blindness. Low vision is a medical term that is defined as chronic disabling visual impairments that cannot be corrected with glasses, contact lenses, or medical or surgical treatment. Most people who consider themselves blind would be included in this broad-reaching definition of low vision.