Adaptations Require Extra Energy and Resources

Experience is the name everyone gives to their mistakes. 

Some of the biological principles stated in this book are probably obvious others may be considered to be unimportant. This one, adaptations require energy could probably be regarded as subordinate to BU adapt to their enviromnent. Nonetheless, because the fact that adaptations require energy and resources is not always completely obvious, and does not always immediately come to mind, we have raised this response as a special matter for consideration. 

A few examples are in order. The first involves bioreactors filled with cells cultivated to produce economically important enzymes. In order to maximize enzyme production, overproducing strains of organisms are used (Shuler and Kargi, 1992). These BU must be fed extra nutrients and energy in order to overcome the inefficiency of producing more of these enzymes than they actually need. 

Hearts that must pump blood against high resistance vessels develop extra-thick walls. This is an adaptation to specific environmental conditions that uses extra energy to produce myocardial proteins and then extra energy to keep the heart beating. 

The flying form has a chance of survival if the habitat dries up. The number of flying insects is dramatically determined by the environmental temperature, so that flying forms appear in the late summer when the danger of desiccation is greatest. We have here either a case of the same genes being present, but not always allowed to be active, or the case of the enviromnental temperature that 

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