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.
Relevance. Rating Newest Oldest. Best Answer: jr is junior sr is senior II is the second, and so on.. so when a son and a father have the same name (and sometimes mom and daughter) the father is John Doe, sr., and the son is John Doe, jr.. If a third person is born and named such, now they may become John Doe, I, John Doe, II ,John Doe, III, and so on. It would be pronounced, John Doe, the third, or John Doe, the second and such. Source(s): annie42 Â· 6 years ago.