Here are the phenomena of Hybridism staring you in the face, and you cannot say, 'I can, by selective modification, produce these same results.
However, the disposition tohybridism varies considerably, and depends on the unknown laws of sexual affinity.
The question of hybridism has, generally speaking, no value in defining the species.
The two first heads will be here discussed; some miscellaneous objections in the following chapter; Instinct and Hybridism in the two succeeding chapters.
Mr. Bentham's address dealing with hybridism is in "Proc.
Darwin states that in his treatment of hybridism in terms of gemmules he is practically following Naudin's treatment of the same theme in terms of "essences.
The case reminds me of those insects with exactly half having secondary male characters and the other half female.
He finally rejected Mr. Darwin's theory that colours "have been developed by the preference of the females, the more ornamented males becoming the parents of each successive generation.
This seems the general rule, but with some few exceptions.
But in doing so it should once more be remembered, that all cases of hybridism and also all varieties sporting annually or frequently, are to be wholly excluded.
Read in the light of modern ideas on unit characters it is now one of the most important works on heredity and has already widespread and abiding influence on the philosophy of hybridism in general.
But since the laws of hybridism are coming to be known we shall have to break with [163] all such usages.
In some rivers the conditions appear to be more favorable to hybridism than in others in which hybrids are of comparatively rare occurrence.
Here are the phenomena of Hybridism staring you in the face, and you cannot say, "I can, by selective modification, produce these same results.
Thus, in fact, hybridism is a source of the origin of new species, distinct from the source we have hitherto considered--natural selection.
At all events, these hybrid species, which can maintain and propagate themselves as well as pure species, prove thathybridism cannot serve in any way to give an absolute definition to the idea of species.
The phenomena of hybridism to which undue importance has been erroneously attributed are thus utterly unmeaning, so far as the idea of species is concerned.
Admitting that hybridism will eventually result in complete beauty, it will be greatly delayed in its attainment through the accumulation of errors that surround the characteristics of race.
Human hybridism, like all hybridism throughout the whole biological field, falls under this law.
Charles Darwin was interested in hybridism as an experimental side of biology, but still more from the bearing of the facts on the theory of the origin of species.
The cases of alleged graft-hybridism are exceedingly few, considering the enormous number of grafts that are made every year by horticulturists, and have been so made for centuries.
The interest in hybridism was for a long time chiefly of a practical nature, and was due to the fact that hybrids are often found to present characters somewhat different from those of either parent.
The problem of hybridism is no more than the explanation of the generally reduced fertility of remoter crosses as compared with the generally increased fertility of crosses between organisms slightly different.
A closer scrutiny of the facts, however, makes the term hybridism less isolated and more vague.
Darwin already had pointed to the act of fertilization as the determining point, and it is in this direction that the theory of hybridism has made the greatest advance.
The main facts of hybridismappear to lend support to the old doctrine that there are placed between all species the barriers of mutual sterility.
The same applies to those definitions of the term wherein the phænomena of hybridism play a part.
It should be mentioned that much information on Hybridism in the Lackey moths and other species will be found in Tutt's "British Lepidoptera," vol.
Much information on this subject and on Hybridism of the Sphingidae will be found in Tutt's "British Lepidoptera," vol.
Hansen of the South Dakota Experiment Station for most of our present knowledge of hybridism between this and other species.
Hybridism is the commonest fault that accompanies the introduction of new words.
Now, as ice is Gothic, and -icle classical, hybridism is simulated.
Hybridism is a term derived from hybrid-a, a mongrel; a Latin word of Greek extraction.
It must not, however, be concealed that several well established words are hybrid; and that, even in the writings of the classical Roman authors, there is hybridism between the Latin and the Greek.
A consideration of the phenomena of hybridismthus leads us to the conclusion that, although many hybrids are fertile, the crossing of distinct species has exercised little or no effect on the origin of species.
Thus, except in the very improbable case of a family of hybrids going off and starting a colony by themselves, the effect of hybridism on the evolution of species seems likely to have been nil.
Now, as ice is Gothic, and -icle classical, hybridism is simulated.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "hybridism" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: blend; crossing; hybrid; miscegenation
