Question

Which one of the following has the largest population in a food chain?

Options

• Producers

• Primary consumers

• Secondary consumers

• Decomposers

Answer 1

Decomposers

Explanation:

Decomposers have the largest population in an ecosystem because they include billions of microscopic organisms, such as bacteria, protozoa, and fungi. While a food chain’s pyramid of numbers usually shows plants at the base, it often excludes microbes, which exist at every level, breaking down dead organic matter. Because a single dead plant or animal can host millions of individual bacterial cells, the absolute population of bacteria vastly outnumbers all producers and consumers combined.