How can humans consist of different types of cells if the cells just replicate themselves? - Quora
Cells To Tissues Lab
How quickly do different cells in the body replace themselves?
Introduction to development (article) | Khan Academy
Types of Tissues | Anatomy and Physiology I
Tissues. Stem Cells The initial fertilized human cell (zygote) is a totipotent stem cell – Can turn into any cell in the human body – A stem cell is immortal. - ppt download