Epidermal layer containing the oldest cells

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

This is collection of data made by comparing objects in standard units. in science, the units are metric.

Fredrick griffith made a scientific discovery in 1928