Which characteristic is shared by extrusions, intrusions, and faults? All are cracks.
All are igneous rocks.
All cause gaps in the geologic record.
All are younger than surrounding rocks.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

are there options? cause you ain’t. real specific

the answer is a. hope this .

gravitational energy

electrical energy

kinetic energy

ligh energy