Body Tissues. Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. This may be abundant in some tissues and minimal in others.issue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells.
Mechanical Engineering student & Senior Supervisor on WikiAnswers. Summer Rae is 31 years old. She was born on November 28, 1983 in Manhasset, New York.
How old are the boys from 5 Seconds of Summer? There is Luke Hemmings who is 17 but turning 18 in July, Michael  who is 18, Calum who is also 18, and the oldest Ashton who is 19  but will be turning 20 in July.