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.
"<span>B.) Before the steamboat, trade along the Mississippi could move only in one direction" would be the best option from the list, since the steamboat provided a way for boats to travel against the current. </span>
Yes. yes it is united states currency did back today
The best answer is B) Nazism
hope this helped