Difference between Mathematicians and Biologists Left and Right

In all scientific/engineering diagrams, graphs and representations of intellectual pictures, left side is the left of your real left hand and right side is the right-hand side of you vice-visa when you are FACING THE PAGE/SCREEN or whatever you are reading. This rule follows in all mathematics, physics, chemistry, engineering branches, and almost anything, but NOT in Biology. Go find images of human hearts dissected, you will find the representations all opposites to above descriptions. This contributes to a big reason why biologists can’t do math and real science. They are in their own little worlds…