What occurs during step 3 of the carbon cycle?

In the carbon cycle, step 3 typically involves the process of respiration. During this phase, organisms, including animals and some microorganisms, consume plants, which are the primary producers that convert carbon dioxide into organic matter through photosynthesis. As these organisms digest the plant material for energy, they metabolize carbohydrates and release carbon dioxide as a waste product back into the atmosphere.

This reflects the interconnectedness of the carbon cycle, where carbon is continually cycled through various forms and reservoirs. The key focus in this step is that carbon, initially captured from the atmosphere during photosynthesis, is ultimately returned to the atmosphere through cellular respiration in consumers. Hence, the process of organisms eating plants and giving off CO2 accurately captures the essence of this part of the cycle.