Answer:
Are you referring to symbiotic relationships between organism? If so, the answer would be parasitism.
One organism, a parasite, takes advantage of another organism at the expense of the host organism.
Ex. A tick bites a dog for blood to use as food. The dog gets an uncomfortable bug bite and the dog might catch a tick borne disease.
Answer:
I think it might be A. I'm not sure.
With smelly feet, you can avoid people who are boring and dangerous (,like bullies),
B. The levels of classification increased. Previously there were only 2 domains of life, Bacteria and Eukarya, but an additional domain and Kingdom were added when the distinction of Archaea was observed.
Answer:
Wolves can also increase tourism.... Wolves were introduced for habitat conservation at Coronation Island, Alaska in 1960, and there they successfully managed deer before the wolf population expanded and then crashed.