What is the strength of tendon $($tensile strength $78\mathrm{.}3$MPa, density $1100$kg$/$m$3$

What is the strength of steel $($tensile strength $0\mathrm{.}710$GPa, density $7700$kg$/$m$3)$

What is the Strength of a bone $($compressive strength $167$ MPa, density $1670$kg$/$m$3)$

What is the strength of concrete? $($compressive strength $0\mathrm{.}410$GPa, density $2700$kg$/$m$3)$