Best Answer: In humans there are two. Glycogen, which is a long chain carbohydrate made by polymerising glucose molecules together, is stored in the liver and, in small amounts, in the muscles. It provides a fast boost of energy for short intense exercise.
A freshman is 9th grade - 14 - 15 yrs. old. A junior is in the 11th year of school./ A senior is in the 12th and final year of high school. Ages vary but a junior is 16-17 years old and a senior is 17-18 years old. Junior is 11 grade, senior is 12 grade (for high school) A junior would be around 17 and a senior around 18.
Junior hockey is ice hockey competition generally for players between 16 and 20 years of age.Junior hockey leagues in the United States and Canada are considered amateur (with some exceptions) and operate within regions of each country.unior hockey is ice hockey competition generally for players between 16 and 20 years of age.