**urgent **
one challenge of tissue engineering is to ensure that the cells grow into the correct shape. to facilitate the growing of the cells, engineers use what?

a. biocompatible materials
b. nanotubes
c. the engineering process
d. scaffolds

14. many depressants reduce small muscle control, making it harder for a. you to steer b. your mind to consider complex problems c. the eye to scan, focus, or stay still d. the kidneys to filter alcohol out of the bloodstream

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?