Biological damage refers to harm caused to living organisms due to various factors, including exposure to toxins, radiation, or pathogens. This damage can affect cells, tissues, and organs, leading to impaired function or disease. For example, radiation can cause mutations in DNA, which may result in cancer or other health issues. In ecosystems, biological damage can disrupt the balance of species and their habitats. When organisms are harmed, it can lead to a decline in biodiversity, affecting food chains and ecosystem stability. Pollution and habitat destruction are common causes of such damage, impacting both wildlife and human health.