A person can have a attitude without realizing, so True.
Stress can cause your esophagus to go into spasms. it can increase the acid in your stomach causing indigestion
It certainly does. If you mean this to be a true false question, then the answer is huge yes.
People with deficiencies in Red Blood Cells will certainly tell you that they are listless and can do very little work because they are not getting enough oxygen going through their bodies. They are not lazy, nor incompetent, because every activity is daunting because they just cannot do the work.
If this in not what you are looking for please leave a note.
Fertility is the actual output of reproduction, and fecundity is the potential output
The answer is C.
Because if it is not Medical Science then C is the answer you are looking for