which of the organisms will have the lowest population in an ecosystem?

The organism that will have the lowest population in an ecosystem depends on various factors such as availability of resources, predators, competition for resources, etc. However, in general, the top predators such as the hawk tend to have lower populations than other organisms in the ecosystem. This is because they are at the top of the food chain and rely on the energy and biomass of all the organisms below them in the chain. In contrast, organisms lower in the food chain, such as the cowpea, praying mantis, and mouse, tend to have larger populations. The cowpea is a type of legume that is often grown as a crop, so its population may be artificially controlled by humans. Praying mantises are carnivorous insects that feed on other insects and are often found in gardens and other natural areas. Mice are small rodents that are widely distributed and can thrive in a variety of habitats. Therefore, while there is no clear-cut answer to which organism will have the lowest population in an ecosystem, in general, the top predators such as the hawk are likely to have smaller populations than other organisms.