Fern is nutrionally a...

saprophyte

Explanation:

The sporophyte stage is the predominant phase in ferns. They have specialized water and nutrients conducting tissues called xylem and phloem that differentiates them from mosses. ... The sporophyte obtains its nutrition from the dead and decaying organic matter

Apart of vegetable consumption and high in vitamin C, protein, and iron.

Explanation:

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.