The difference between these two questions is that one has a scientific answer for that question. The one that says, " Can dogs identify colors?" is scientific because it can be answered scientifically but the one that says, "Are dogs better pets than cats?" cannot be answered scientifically.
~Hope that this makes since and helps
The populations of the species there will go extinct
Number B is the correct number
Answer:
the answer is F oxygenated blood circulates back into the heart and is then pumped to all parts of the body through the arteries
