Answer:
External locus of control
Explanation:
Mark failed his last test and blamed it on the fact that the test was poorly written and the room was too noisy for him to concentrate, not because he didn't study for the test. Mark would be said to have an External locus of control.
Important historical events
Answer:
The answer is developmental psychologist.
Explanation:
Developmental psychology refers to a branch of psychology that intends to understand human development, especially during childhood. It is concerned with several psychological changes such as abstract though and emotions. It also recognises the importance of social factors into a person's development.
Mitochondrion would be your answer for this:)