Although the monophyletic derivation of all #Sphaerellaria# from Cenosphaera is exceedingly probable, the possibility of a polyphyletic origin for the group is by no means excluded.
If the polyphyletic theory be adopted, it must be said that the position of the materialist is made far more difficult than it is at present.
But what are we to say with regard to the series of repeated accidents which the polyphyletic hypothesis would seem to demand?
Let us now consider what the polyphyletic hypothesis involves.
Monophyletic or polyphyletic evolution, whichever, if either, it may have been, presents no difficulty on the creation hypothesis.
Monophyletic or Single, Polyphyletic or Multiple Origin of the Human Race.
The Monophyletic Hypothesis of Descent, or the Hypothesis of one Common Progenitor, and the Polyphyletic Hypothesis of Descent, or the Hypothesis of Many Progenitors.
But it is very possible that the more complete Theory of Descent of the future will involve the polyphyletic origin of very many of the low and imperfect groups of the two organic kingdoms.
Monophyletic andPolyphyletic Hypothesis of the Descent of the Animal Kingdom.
But if we adopt the polyphyletic hypothesis of descent, we have to imagine a number of organic tribes, or phyla, which all shoot up by spontaneous generation out of the same ground, by the side of and independent of one another.
The Monophyletic Hypothesis of Descent, or the Hypothesis of one Common Progenitor, and the Polyphyletic Hypothesis of Descent, or the Hypothesis of many Progenitors.
Without here expressing our opinion in favour of either the one or the other conception, we must, nevertheless, remark that in general the monophyletic hypothesis of descent deserves to be preferred to the polyphyletic hypothesis of descent.
The question of the monophyletic or polyphyletic origin will constantly recur within each individual tribe, where the origin of a smaller or of a larger group is discussed.
A safe means of deciding between the monophyletic and polyphyletic hypotheses is as yet quite impossible, considering the imperfect state of our phylogenetic knowledge.
Is the return of my irreplaceable notes on 'Polyphyletic Bridal Customs among the mid-Pleistocene Cave Men' to depend on a solitary director?
The problem of the monophyletic or polyphyletic origin of the human race has also been much discussed.
A collective polyphyletic or heterogeneous group, originally cosmopolitan; with certainty existing since the Miocene.
And within the same group we find the contrasts of believers in monophyletic and believers in polyphyletic evolution, the mechanists and the half-confessed or thoroughgoing vitalists, the preformationists and the believers in epigenesis.
He leaves us to choose between monophyletic andpolyphyletic evolution, but himself inclines towards the latter, associating with it a rehabilitation of Wigand's theory of the primitive cells.
Comparative philology has recently shown that human speech is polyphyletic in origin; that we must distinguish several (probably many) different primitive tongues that were developed independently.
But the various features in which the Mammals agree and by which they are distinguished are of such a character as to make a polyphyletic hypothesis quite inadmissible.
On the question as to whether descent was monophyletic or polyphyletic Darwin expressed no dogmatic opinion.
He believed in saltatory evolution, in polyphyletic descent, and in the greater plasticity of the organism in earlier times.
Almost all rich genera are polyphyletic in the sense that their component species evolve along separate and parallel lines of descent.
The mystic notion that the human soul will live forever after death has had a polyphyletic origin.
The different forms which monotheism has assumed in the course of its polyphyletic development may be distributed in two groups--those of naturalistic and anthropistic monotheism.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "polyphyletic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
