Information about your activity on this service (such as forms you submit, content you look at) can be stored and combined with other information about you (for example, information from your ...

Natural cycles and decomposition - Edexcel Materials such as carbon, nitrogen and water are recycled in the ecosystem. When organisms die, decomposition will recycle minerals and nutrients back to ...

The numbers of predators and prey for certain ecosystems such as the Canadian Lynx (wild cat) and hare have been recorded over many years and found to change in a regular cycle. A similar example ...