Prior to using this narrative, have learners create their own model of a cell in their notebooks using whatever background information or experience they might have. While exploring the narrative, ...

It's no coincidence that our bodies feel a little creakier as we age. The trillions of cells that make up our skeleton age too, and some change in ways that weaken the very structure of our bones.

Our bodies comprise different tissues and organs, which are composed of many cells that must adhere to form functional higher order structures. This adherence is facilitated by specialized proteins ...