Not definitely sure, but maybe a loyalist.
Where are the options? Sorry, I think you forgot to add them
This is a simple definition of his philosophy called Dualism.
Yes, studying how mayfly population affects the number of trout in a stream is ecology.
Ecology seeks to unveil how different organism relate with one another as well as their environment.
Ecology is basically the study of distribution,abundance and relation of organisms and their interaction with their environment.