Thank you, again. This was helpful.
My previous experience with Apple products was with the iPad and the iPhone. With those products, search engines (like Google, Bing, etc.) are apps from the App Store. With the iOS, clicking on the search engine icon takes you directly to the search function. (I assume that it opens Safari in the background to achieve this.) The iOS also offers the option of opening Safari and the going to www.google.com or www.bing.com. I think that the iOS approach is perfect. I assumed a common approach for all Apple products. That assumption was incorrect.
Thanks, again, for your timely assistance.