Life Strategies, Human Evolution, Environmental Design: by Valerius Geist (auth.)

By Valerius Geist (auth.)

Consider that you just have been requested the right way to be sure human survival. the place could you start? Conservation of assets jumps to brain. we have to preserve assets so that monetary actions could proceed. sadly, this can be a fake commence. assets are constantly outlined through a given economic climate, and merely it determines what's and what's no longer a source. as a result, maintaining assets implies merely the perpetua­ tion of the suitable economy. Conservation of assets as we all know them has not anything to do with the survival of mankind, however it has a great deal to do with the survival of the commercial process and society we are living in at the present time. we need to begin, consequently, at a extra simple point. This point, a few may perhaps argue, is addressed by way of making sure for humans "clean genes. " back, it is a flawed starting. it truly is completely mistaken-for purposes of technological know-how. it's a fake begin simply because malfunctioning organs and morphological constructions will not be simply as a result of deleterious hereditary elements yet quite as a result of unfavourable environments in the course of early development and improvement. additionally, eugenics isn't applicable to any yet a small fraction of society. Eugenics will not be beside the point to our destiny, yet is untimely and may be of little obstacle till we know how human genes and atmosphere interact.

Show description

Read or Download Life Strategies, Human Evolution, Environmental Design: Toward a Biological Theory of Health PDF

Best biology & life sciences books

Agricultural Development in Tanganyika

In early 1961 the Ho-Institut fur Wirtschaftsforschung (Ho-Institute for fiscal examine) validated an "African experiences Centre" with the aid of the Fritz-Thyssen-Foundation to behavior learn into the industrial and political difficulties of constructing international locations, with spe cial connection with the African international locations.

Chance and Necessity: An Essay on the Natural Philosophy of Modern Biology

Probability and Necessity: Essay at the common Philosophy of contemporary Biology (French: Le Hasard et los angeles Nécessité: Essai sur l. a. philosophie naturelle de los angeles biologie moderne) is a 1970 publication through Nobel Prize winner Jacques Monod, analyzing the approaches of evolution to teach that existence is just the results of common tactics by means of "pure chance".

Biology Science for Life (4th Edition)

Coleen Belk and Virginia Borden Maier have helped scholars demystify biology for almost two decades within the school room and approximately ten years with their booklet, Biology: technological know-how for all times. within the new Fourth variation, they proceed to exploit tales and present matters, akin to dialogue of melanoma to coach cellphone department, to attach biology to student’s lives.

Additional info for Life Strategies, Human Evolution, Environmental Design: Toward a Biological Theory of Health

Sample text

Predictable Environment In order to extend its chances of survival maximally, an organism must not be confronted with unique problems. If this were the case, it would have to develop solutions de novo, and discard these after use. This would be a very risky life Predictable Environment 27 indeed, for the chances of quickly finding and applying the correct solutions to unique problems are, of course, smaller than those of implementing solutions to problems repeatedly encountered. Thus, the more limited the range of problems confronted by an organism, the more likely it will be to possess and implement proven solutions, cheap solutions, and thus maximize its reproductive fitness.

As in the case of the rule stating that individuals must maintain access to limiting resources, so this rule depends on mechanisms of communication. Here too we are dealing with dominance displays, as these become not only inexpensive means of attaining the aims of overt aggression but also symbols of dominance attractive to the female. The ramifications of this rule are discussed in further chapters of this book. Grand Strategies of Maintenance and Spread In order to maintain itself, the grand strategy of the gene must be, on one hand, to be able to maintain itself wherever it gains a foothold and, on the other (rule 6), to be able to exploit instantly any opportunity for spread-be this geographically or into new resources.

This type of evolution has been of considerable concern to students of evolution (see Mayr 1966, Wilson 1975), yet it is of no great concern to us here; directed evolution is. Directed evolution takes place whenever the genetic variance of a trait under selection exceeds the environmental variance, and it is most rapid when the environmental variance of a selected trait is nil. This occurs under two conditions: first, when resources are superabundant and the genetic potential of a given trait can be expressed maximally; secondly, when resources are so scarce that there is com- 22 Organism Theory petition among organ systems for the available energy and nutrients for growth.

Download PDF sample

Life Strategies, Human Evolution, Environmental Design: by Valerius Geist (auth.)
Rated 4.82 of 5 – based on 48 votes