The Best Thermal Conditions

Jupiter has loaded us with a couple of wallets the one, filled with our own vices, he has placed at onr back the other, heavy with those of others, he has hnng before. 

Lastly, let us consider the consequences of an environment that provides either little heat or too much. If too little, then the water in the BU will likely freeze. Water crystals disrupt the physical structures of BU, and the BU dies. Some BU (plants, fungi, and microbes) have developed the ability to form dry spores that can survive low temperatures for the long periods of time, and others (fish) 

Too much heat can have the same lethal effect. With too much heat, proteins and enzymes become denatured and ineffective. Without these, normal metabolism stops, and the BU dies. 

it can be seen that the thermal environment of a BU must be maintained at a level to sustain life. In some cases, for example in the preservation of meat, fish, or produce, a cold thermal environment is maintained to keep the BU alive, but growth and reproduction are of no consequence. In other cases, when growth and reproduction are important, as in a bioreactor, the thermal environment will be different, and perhaps more exacting. 

Platelets are made in the bone marrow and play a central role in forming blood clots. Aggressive cancer chemotherapy can cause the bone marrow to cease functioning, and hence can halt platelet production. As a consequence, platelets must be transfused into these patients. 

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