How do animals contribute to the carbon cycle?

Animals contribute to the carbon cycle primarily through respiration. During respiration, animals take in oxygen and break down organic molecules, such as glucose, to release energy. This process generates carbon dioxide as a byproduct. The carbon dioxide is then released back into the atmosphere, where it can be utilized by plants during photosynthesis to create organic matter. This cycle of respiration in animals and photosynthesis in plants is essential for maintaining the balance of carbon in the ecosystem.

The process of respiration is critical because it illustrates how animals not only consume carbon-containing organic materials from plants and other organisms but also return carbon back into the atmosphere, showcasing their role in the carbon cycle.