Ecosystem. it is defined as a biological community of interacting organism and their physical environment.
That would be the ribosome
Ribosomes are tiny particles that carries RNA molecules.
The answer is tissue fluid. Tissue fluid holds far smaller quantity of protein molecules because they are too large to escape easily over the tiny holes in the capillary endothelium. Tissue fluid doesn't contain red blood cells because they are too large, but does comprise some white blood cells.
