People who advertises items or things to put there ideas out there.
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.
A warm air does always rise and cold air falls
Answer:
They could be called Gametes as they are inside the reproductive cells.