LIFE SCIENCE

Detailed explanation-1: -The base of the pyramid is composed of species called autotrophs, the primary producers of the ecosystem.

Detailed explanation-2: -At the bottom of the pyramid, you have producers. These are usually plants or other photosynthetic organisms, such as algae or photosynthetic bacteria. Producers are autotrophs, meaning they are self-feeding organisms that do so by making their own organic molecules.

Detailed explanation-3: -The producer in the food chain always goes at the bottom of the pyramid of numbers and the apex predator at the top.

Detailed explanation-4: -Detritivores and decomposers are the final part of food chains. Detritivores are organisms that eat nonliving plant and animal remains. For example, scavengers such as vultures eat dead animals. Dung beetles eat animal feces.