Kelp forests are found in cold, nutrient-rich water and are found in the shallow coast. Kelp forests have a very high salinity
The deer eat grass. Its droppings, which eventually decompose into the ground, provide minerals and vitamins to the plant roots. This food is vital for it so the plant remains alive and can produce oxygen which is essential for the deer and grass is also a food source for him too.
Artificial selection is responsible for the differences in these vegetables.