What is the name given to the complex prey/predator cycle in which all animals (including man) take part?

The term that describes the complex prey/predator cycle involving all animals, including humans, is the Food Chain. A food chain illustrates the direct transfer of energy and nutrients from one organism to another within an ecosystem. It delineates how energy flows through various trophic levels, starting with producers (like plants) and moving up to herbivores and then to carnivores.

This concept emphasizes the interdependencies among different species, where organisms rely on one another for sustenance. It encapsulates the dynamics of predation and resource availability, forming the backbone of ecological relationships. These connections showcase the balance that occurs within food webs, illustrating how changes in one population can impact others within the cycle.

The other choices represent different ecological concepts. A habitat refers to the natural environment in which an organism lives, while an ecosystem encompasses all living organisms interacting with their physical environment within a certain area. Biomes are large regions characterized by specific climate conditions and plant and animal communities. While all these terms relate to ecology, the precise framework describing the prey/predator dynamics is captured specifically by the concept of the Food Chain.