Hey there!
Here is your answer:
The proper answer to this question is "is sometimes used when referring to a persons view".
Reason:
Haldane Oparin theory was used to refer to a persons view on life may have originated on Earth. Meaning a persons view on a certain subject for example: Life, religion, the world, etc... (particular meaning any subject). Therefore just remember a view on a subject.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit