The Nervous System and The Endocrine System.
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False the goal was to cover the smear if it evaporates the smear is uncovered meaning the goal wasn’t meant. It could also be true though because you could just apply more dye to cover it up. So it might be true
Mushrooms, well, they just break down, or decompose dead organisms.
Vultures, they eat the tiny pieces of meat left on dead animals.