the most speciallized is b. grizzly bear
answer: the correct answer is option d.
a scientific model is physical,conceptual or mathematical representation of real phenomena or process which cannot be directly observed.
a drawing of a atom is a scientific model to understand the or to get picture of it in an individual mind. atom are smallest unit of the matter which are not visible to human eyes.
a light powered microscope is an instrument which works on principles of reflection, refraction, and optics in physics which.
formation of cloud is also explained by the of model. formation of clouds is a chemical process which can not be observed or seen directly with of healthy human eye.
so, from the given options. option which is not in accordance with the definition of scientific model is option d.