Cells can best be described as: a)the smallest form of matter. b) tiny particles found in food. c)part of the air people breathe. d) building blocks of all living things.

the endomembrane system is a series of compartments that work together to package, label, and ship proteins and molecules. in your cells, the endomembrane system is made up of both the endoplasmic reticulum and the golgi apparatus. these compartments are folds of membranes that form tubes and sacs in your cells.

b. to discover aspects of the natural world.

hopefully i .