Maslow's Hierarchy of Needs. Definition. Maslow's hierarchy of needs is a theory of motivation and personality developed by the psychologist Abraham H. Maslow (1908â1970). Maslow's hierarchy explains human behavior in terms of basic requirements for survival and growth.
When you use ice to cool the ingredients for ice cream, the energy is absorbed from the ingredients and from the outside environment (like your hands, if you are holding the baggie of ice!).
The total energy (TEF) needed to digest and absorb a whole food sandwich was 576 kJ. The TEF for the processed food sandwich was 310 kJ. Figure 2 gives you a hour-by-hour average increase in metabolic rate from basal metabolic rate over 6 hours after eating the sandwiches.