Matching.
1. the nutrient that is essential to cellular construction, reproduction, and maintenance essential amino acids
2. proteins that cannot be manufactured by the body and must be derived from food sources incomplete proteins
3. food source that contains all the essential amino acids complete protein
4. food sources that do not contain all the essential amino acids protein

1. protein
2. essential amino acids
3. complete proteins
4. incomplete proteins 

Personality is a mixture of characteristics/qualities that form an individual's distinctive persona. it can be influenced by environmental and biological factors; one's culture is a most important factor that shape personality. extreme mood swings, unstable relationships, distorted self-image, impulsive/risky behavior, explosive anger, chronic feelings of sadness/emptiness, etc. these could indicate that someone could have a personality disorder.