the splitting of a single cell into 2 identical cells which are also identical to the parent cell.
<span>If the organism does not produce many enzymes, it might be slower to liquefy gelatin than other organisms. Another reason could be that the enzymes that the organism does produce simply do not have an affinity for gelatin: this would also slow the rate at which the substance is made into liquid.</span>
Black lung disease is the popular name for CWP (Coal Worker Pneumoconiosis).
It is cause after a long-lasting exposure to coal dust, normally ocurring in a couple of months or even years, depending on the intensity of the exposure. It is noticed mosty by strong coughs and by literally having black lungs.
The image pasted below will give you a better idea of how CWP looks like.
Hope it helped,
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