The answer is true, if something in coming at you from a steep direction, there will me more of a long oval shape rather than it hitting you head on making a circle
1. Amylase, produced in the mouth. It helps break down large starch molecules into smaller sugar molecules.
2. Pepsin, produced in the stomach.
3. Trypsin, produced in the pancreas.
I'm probably wrong. Sorry.
As population density increases, competition increases because there are more organisms competing for the same number of resources