2,000 Calories a day is used for general nutrition advice, but calorie needs vary. Dunkin' Donuts has made a reasonable effort to provide nutritional and ingredient information based upon standard product formulations and following the FDA guidelines using formulation and nutrition labeling software.
Definition of system for English Language Learners. : 1  a group of related parts that move or work together. : 2  a body of a person or animal thought of as an entire group of parts that work together. : 3  a group of organs that work together to perform an important function of the body.
Very simply put, the definition of an organ system is a group of organs that work with one another in order to achieve or perform a particular task or set of tasks. The human body has the following major organ systems: circulatory system, digestive system, endocrine system, excretory system, integumentary system, nervous system, respiratory system and the skeletal and muscular system.