Answer:
Environment
Explanation:
B.F Skinner was of the belief that the environment of a person drove or influenced his behavior. His opinion was that human beings have a particular way of behaving which requires special kinds of responses and that as this goes on, humans will adapt and start behaving in a certain kind of way.
He strongly believed that because we learn things differently and in different environments, that is why there are differences in human behavior and one's environment can shape his personality.
The efficiency of 0.7 means 70% of the total output that will be useful.
So in order to answer this type of question you just need to multiply the amount of energy used(150 unit) with the efficiency(0.7)
The calculation will be: 150 x 0.7 = 105 unit
So the amount of useful energy you will get out of it would be: 105 unit
The second stage of cellular respiration takes place in the mitochondria.