United States or Ireland ? Vote for the TOP Country of the Week !
On my view of characters being of real importance for classification, only in so far as they reveal descent, we can clearly understand why analogical or adaptive character, although of the utmost importance to the welfare of the being, are almost valueless to the systematist.
The reader will notice that I accept without question the belief that the so-called cliff dwellers were not a distinct people, but a specially adaptive condition of life of a race whose place of habitation was determined by its environment. We are considering a people who sometimes built dwellings in caverns and sometimes in the plains, but often in both places at the same epoch.
We shall here consider briefly the reasons for some of those variations and the mechanisms which make them possible. Biologic Consideration of the Adaptive Variation in Amounts of Energy Stored in Various Animals Energy is appropriated from the physical forces of nature that constitute the environment. This energy is stored in the body in quantities in excess of the needs of the moment.
Then all at once out of this dull, dead motley of harmonious nothingness, a single gorgeous spot had revealed itself, swelled out, and disappeared: a butterfly had opened its wings, laid bare their inside splendours, and closed them again presenting to the eye only the adaptive, protective, exterior of those marvellous swinging doors of its life.
These adaptive responses to stimuli are the result of the action of the brain-cells, which are thus continually played upon by the stimuli of environment. The energy stored in the brain-cells in turn activates the various organs and parts of the body.
Japan is bristling with workshops and mills in which a hundred forms of handiwork will be developed and in a majority of these the adaptive labor of the empire will fabricate, from materials drawn from America, scores of forms of merchandise, which the Japanese propaganda will distribute throughout China, Manchuria, Korea and Japan the "Great Japan," British publicists are calling it.
Languages, science, philosophy, they grasp as clearly, strongly, and comprehensively as men; and as the result of his observation and of his experience, which, he says, in co-education in a higher course of study, has perhaps been greater than that of any man in the world, he thinks that while it is just as much better for men to be so educated as it is for women, the result to the latter is to make them more practical, more natural, less given to effeminate, rather than feminine affectations, and more readily adaptive to anything life may demand of them than any class of women he has ever known.
On the view of characters being of real importance for classification, only in so far as they reveal descent, we can clearly understand why analogical or adaptive characters, although of the utmost importance to the welfare of the being, are almost valueless to the systematist.
As I pointed out in my Sexual Dimorphism , the common characteristic of somatic sexual characters is their adaptive relation to some function in the sexual habits of the species in which they occur. All other differences, therefore, including genital ducts and copulatory or intromittent organs, are somatic.
We have now referred to variations in the rate of discharge of energy in different species; in individuals of the same species; in cycles in the same individual such as the seasons of food supply, the periods of wakefulness and of sleep, the procreative period, and we have spoken of those variations caused artificially by thyroid feeding, thus far having confined our discussion to the conversion for adaptive purposes of latent into kinetic energy in muscular and in procreative action.
Word Of The Day