Omega 3
fish meat is having good nutrual oil carbohydrates proteins and still more.
the main nutrient of apple is Carbohydrate.
The main nutrient in Oranges is Vitamin C.
iron
The energy for the plants in a fish tank is supplied by Light.
the electricity supplied to a house
Fish was the main source of protein in U.A.E. in the olden days & not camel milk as fish provides more nutrient than camel milk as it provides more nutrients & protein than camel meat. The taste of fish is better than camel meat. Also as it is the national animal of U.A.E.
Vitamin B12 is primarily supplied by animal-based foods, such as meat, fish, eggs, and dairy products. It is synthesized by certain bacteria, which are then consumed by animals, making it a vital nutrient for those who eat animal products. For individuals following a vegan or strict vegetarian diet, B12 can be obtained through fortified foods or supplements.
A crappie fish is primarily a consumer. It feeds on smaller fish, insects, and zooplankton, playing a role in the aquatic food chain as a predator. While it may indirectly contribute to nutrient cycling in the ecosystem, its main role is as a consumer of other organisms.
water
Protein.
Carotene