Florida Biology EOC Practice Test 2026 - Free Biology End-of-Course Practice Questions and Study Guide

The carbon cycle is fundamental because it regulates Earth's climate and supports life by recycling carbon through various forms and processes. Carbon is a key component of organic molecules, which are essential for life. The cycle includes processes such as photosynthesis, where plants absorb carbon dioxide from the atmosphere and convert it into organic matter, and respiration, where organisms return carbon dioxide back into the atmosphere. This continuous movement of carbon helps to maintain atmospheric balance, affecting climate patterns and supporting ecosystems.

The significance of recycling carbon through this cycle also means that carbon is constantly being reused by different organisms and environmental processes, making it a vital component for sustaining biodiversity and overall ecological health. This interconnectedness highlights how carbon is not only essential for individual organisms but also plays a critical role in the planet's health and climate regulation.