Ecology is the study of the relationships between living organisms, including humans, and their physical environment; it seeks to understand the vital connections between plants and animals and the world around them.
In Common Usage. documentation is one of the 10000 most commonly used words in the Collins dictionary.
document. 1  to provide with a document or documents. 2  to provide (a book, pamphlet, etc.) with documents or supporting references. 3  to prove, as by reference to documents. 4  to gather and report the details of; cover or chronicle.