Asimplified representation of an object, structure, or system used in analysis, explanation, interpretation, or design is called

The correct answer is Model.  

Model is defined as the three dimensional representation of any object, structure, or any system. It is made in a simplified way and can be used for analysis, explanation, interpretation, or design of that system.

Example- A scientific model like Bohr's atomic model representing structure of an atom.

Thus, model is the right answer for the question.

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.