Do both plants and animal cells have endoplasmic reticulum?

Yes, both plant and animals cells have an endoplasmic reticulum.

 Retículo endoplasmático. Conjunto de membranas que formam sáculos e tubos conectados entre si com a membrana celular e o envoltório nuclear. Há dois tipos: o RE rugoso, que tem ribossomos, e o RE liso, sem eles. Transporta, armazena e modifica proteínas e lipídios pela célula.

The answer is magnitude measures the effects of an earthquake on the area , while the intensity measures the strength of an earthquake.

It is evolution, because we all have some of the same traits like eye color or shape or ears.