3 types of blood vessels

Human beings have four major blood types, A, B, AB and O.

Blood cells, like all cells, are covered with molecules called ‘antigens', which depend on our genes. If we transfuse the blood of a certain antigen into a person with a different one, the immune system...

• Self-oriented: the irrational desire to be perfect.
• Socially prescribed: perceiving excessive expectations from others.
• Other-oriented: placing unrealistic standards on others.

1. Motivation 1.0 - The survival instict: In this situation, the primary things that keep us alive (food, water, shelter) control our actions.
2. Motivation 2.0 - The stick and the carrot: This system assume workers will have no desire to work unless the...