Which of the following challenges associated with creating prostheses via tissue engineering do scaffolds address?
O A. Only power
O B. Both strength and power
C. Biocompatibility
D. Size and shape

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.

Which method would be best to separate a mixture of sand and gravel