This trophic pyramid shows the different types of organisms in an ecosystem. why do you think a pyramid shape is used to show this categorization?

It is a pyramid shape because the trophic pyramid, is a graphical representation designed to show the biomass or bio productivity at each trophic level in a given ecosystem.

The bottom of the pyramid is made up of plants and other organisms that perform photosynthesis. Photosynthesis transforms energy from the Sun into usable energy for living things. An ecosystem needs to have more of these organisms than any other organism because they provide energy for the entire ecosystem.

Explanation:

answer from Plato

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.