The question asks to identify the scientist who coined the term 'ecology'.

Ecology Term Origin

The term 'ecology' was coined by the German scientist Ernst Haeckel.

Identifying the Coiner of 'Ecology'

• The word 'ecology' (from German 'Oekologie') was first used by Ernst Haeckel in 1866.
• Haeckel, a prominent biologist, zoologist, and physician, introduced the term to describe the study of the relationships between living organisms and their environment.
• He defined ecology as the science of the commensalism with the conditions of existence.
• While others like Warming and Odum made significant contributions to the field later, Haeckel is credited with first introducing the term itself. Charles Darwin focused on evolution through natural selection.

Conclusion

Based on scientific history, Ernst Haeckel is the originator of the term 'ecology'.