The most accurate statement explaining why matter can recycle through the biosphere is:
biological systems do not use up matter, they transform it.
This reflects the concept that while living organisms utilize matter (in the form of nutrients and elements) for growth and metabolism, they do not create or destroy it. Instead, they transform it into different forms, such as organic compounds. These compounds can then be broken down and reused by other organisms, facilitating the recycling of matter through ecosystems.