Which perspective most clearly focuses on how we learn observable responses?

The perspective that most clearly focuses on how we learn observable responses is called the behavioral perspective.

Explanation:

In psychology, the behavioral perspective focuses on observable responses, whether they are conscious or unconscious, and the process of learning them. For this perspective, every human behavior can be understood in terms of a response and a stimulus.

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.

your answer is rising unemployment and inflation.