10. Radioactive isotopes give off radiation that can be detected. This property makes them useful in which of the following ways?

A) as tracers in chemical reactions
B) in detecting leaks in oil pipelines
C) in diagnosing certain medical problems
D) all of the above

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.

digestion

it excretes wastes

the answer is 100% density i've answered this question before and done the quiz myself.