Slice(s) at a 2 Bioprinting is a technique that deposits layers of material
time to construct a three-dimensional (3D) object.

A-4
B-3
C-2
D-1

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

a physical change is being made.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.