How will a microscopic model of an ecosystem differ from a large-scale system? Microscopic models move at a much faster rate than large-scale systems.

Ecosystem relationships cannot be observed in a microscopic model.

Ecological hierarchy levels are structured differently in microscopic models.

Biospheres in microscopic models will not change at all like they do in large-scale systems.

compost can be added to topsoil as a:

pesticide

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.