英语词汇“cenogenetic”造句的方法、技巧、例句及翻译-英语例句辞典

In the evolutionary appreciation of the facts of embryology we must take particular care to distinguish sharply and clearly between the primary, palingenetic evolutionary processes and the secondary, cenogenetic processes. Evolution in Modern Thought

The first I have named palingenetic, the second cenogenetic. Form and Function A Contribution to the History of Animal Morphology

We must, above all, clearly distinguish between palingenetic and cenogenetic phenomena. The Evolution of Man — Volume 2

I regard all those that diverge from the primary palingenetic gastrulation as secondary, modified, and cenogenetic. The Evolution of Man — Volume 1

In this we have throughout taken strict account of the distinction between palingenetic and cenogenetic phenomena. The Evolution of Man — Volume 2

We have only recently succeeded, by means of comparative research, in overcoming these difficulties, and reducing this cenogenetic form of gastrulation to the original palingenetic type. The Evolution of Man — Volume 1

This typical formation might be masked by cenogenetic modifications caused chiefly by the presence of yolk. Form and Function A Contribution to the History of Animal Morphology

In order to appreciate this important feature, we have distributed the embryological phenomena in two groups, palingenetic and cenogenetic. The Evolution of Man — Volume 2

It is precisely in the study of these difficult features that we see the incalculable value of phylogenetic considerations in explaining complex ontogenetic facts, and the need of separating cenogenetic phenomena from palingenetic. The Evolution of Man — Volume 1

The cenogenetic gastrulation of the placental has been greatly modified by secondary adaptation in the various groups of this most advanced and youngest sub-class of the mammals. The Evolution of Man — Volume 1

Of these four forms we must regard one only as the original palingenetic, and the other three as cenogenetic and derivative. The Evolution of Man — Volume 1

Hence we must once more thoroughly understand the palingenetic embryonic features of the lancelet before we go on to consider the cenogenetic forms of the craniota. The Evolution of Man — Volume 1

Moreover, in the animals in which we do not find a real palingenetic blastula the defect is clearly due to cenogenetic causes, such as the formation of food-yelk and other embryonic adaptations. The Evolution of Man — Volume 2

The cenogenetic modifications of the latter are more appreciable the more food-yelk is stored up in the ovum. The Evolution of Man — Volume 1

These cenogenetic modifications seem to be so great that until twenty years ago these important processes were totally misunderstood. The Evolution of Man — Volume 1

By far the most important process that determines the various cenogenetic forms of gastrulation is the change in the nutrition of the ovum and the accumulation in it of nutritive yelk. The Evolution of Man — Volume 1

We can, therefore, reduce this cenogenetic form of the discoid segmentation to the palingenetic form of the primitive cleavage. The Evolution of Man — Volume 1

In order to distinguish correctly between palingenetic and cenogenetic phenomena in embryology, and deduce sound conclusions in connection with stem-history, we must especially make a comparative study of the former. The Evolution of Man — Volume 2

But in the monotremes the formation of the cenogenetic entoderm does not precede the invagination; hence in this case the construction of the germinal layers is less modified than in the other amniota. The Evolution of Man — Volume 1

The cenogenetic process of adaptation," I said, "which has occasioned the atrophy of the rudimentary yelk-sac of the mammal, is perfectly clear. The Evolution of Man — Volume 1

It is the more instructive as even cenogenetic structures may in certain circumstances have a high phylogenetic value. The Evolution of Man — Volume 1

This cenogenetic process is so old that the cavity seems to be unsegmented from the first in all the craniotes, and the rudiment of the gonads also is almost always unsegmented. The Evolution of Man — Volume 1

There is an interesting cenogenetic phenomenon in the formation of the heart of the higher Vertebrates that deserves special notice. The Evolution of Man — Volume 2

Nevertheless, it is not difficult to reduce the whole cenogenetic or disturbed development of this amphigastrula to the true palingenetic formation of the archigastrula of the amphioxus. The Evolution of Man — Volume 1

Hence the distinctive embryonic process of the mammal must have arisen by cenogenetic modifications from the older form of gastrulation of the reptiles and birds. The Evolution of Man — Volume 1

These cenogenetic phenomena are foreign or later additions; they allow us to draw no direct inference whatever as to corresponding processes in our ancestral history, but rather hinder us from doing so. The Evolution of Man — Volume 1

In this we see especially the high scientific value of the biogenetic law and the careful separation of palingenetic from cenogenetic processes. The Evolution of Man — Volume 1

Thorough opponents of the biogenetic law have laid great stress on these and similar cenogenetic phenomena, and endeavoured to urge them as striking disproofs of the law. The Evolution of Man — Volume 2

单词	cenogenetic
例句	cenogenetic In the evolutionary appreciation of the facts of embryology we must take particular care to distinguish sharply and clearly between the primary, palingenetic evolutionary processes and the secondary, cenogenetic processes. Evolution in Modern Thought The first I have named palingenetic, the second cenogenetic. Form and Function A Contribution to the History of Animal Morphology We must, above all, clearly distinguish between palingenetic and cenogenetic phenomena. The Evolution of Man — Volume 2 I regard all those that diverge from the primary palingenetic gastrulation as secondary, modified, and cenogenetic. The Evolution of Man — Volume 1 In this we have throughout taken strict account of the distinction between palingenetic and cenogenetic phenomena. The Evolution of Man — Volume 2 We have only recently succeeded, by means of comparative research, in overcoming these difficulties, and reducing this cenogenetic form of gastrulation to the original palingenetic type. The Evolution of Man — Volume 1 This typical formation might be masked by cenogenetic modifications caused chiefly by the presence of yolk. Form and Function A Contribution to the History of Animal Morphology In order to appreciate this important feature, we have distributed the embryological phenomena in two groups, palingenetic and cenogenetic. The Evolution of Man — Volume 2 It is precisely in the study of these difficult features that we see the incalculable value of phylogenetic considerations in explaining complex ontogenetic facts, and the need of separating cenogenetic phenomena from palingenetic. The Evolution of Man — Volume 1 The cenogenetic gastrulation of the placental has been greatly modified by secondary adaptation in the various groups of this most advanced and youngest sub-class of the mammals. The Evolution of Man — Volume 1 Of these four forms we must regard one only as the original palingenetic, and the other three as cenogenetic and derivative. The Evolution of Man — Volume 1 Hence we must once more thoroughly understand the palingenetic embryonic features of the lancelet before we go on to consider the cenogenetic forms of the craniota. The Evolution of Man — Volume 1 Moreover, in the animals in which we do not find a real palingenetic blastula the defect is clearly due to cenogenetic causes, such as the formation of food-yelk and other embryonic adaptations. The Evolution of Man — Volume 2 The cenogenetic modifications of the latter are more appreciable the more food-yelk is stored up in the ovum. The Evolution of Man — Volume 1 These cenogenetic modifications seem to be so great that until twenty years ago these important processes were totally misunderstood. The Evolution of Man — Volume 1 By far the most important process that determines the various cenogenetic forms of gastrulation is the change in the nutrition of the ovum and the accumulation in it of nutritive yelk. The Evolution of Man — Volume 1 We can, therefore, reduce this cenogenetic form of the discoid segmentation to the palingenetic form of the primitive cleavage. The Evolution of Man — Volume 1 In order to distinguish correctly between palingenetic and cenogenetic phenomena in embryology, and deduce sound conclusions in connection with stem-history, we must especially make a comparative study of the former. The Evolution of Man — Volume 2 But in the monotremes the formation of the cenogenetic entoderm does not precede the invagination; hence in this case the construction of the germinal layers is less modified than in the other amniota. The Evolution of Man — Volume 1 The cenogenetic process of adaptation," I said, "which has occasioned the atrophy of the rudimentary yelk-sac of the mammal, is perfectly clear. The Evolution of Man — Volume 1 It is the more instructive as even cenogenetic structures may in certain circumstances have a high phylogenetic value. The Evolution of Man — Volume 1 This cenogenetic process is so old that the cavity seems to be unsegmented from the first in all the craniotes, and the rudiment of the gonads also is almost always unsegmented. The Evolution of Man — Volume 1 There is an interesting cenogenetic phenomenon in the formation of the heart of the higher Vertebrates that deserves special notice. The Evolution of Man — Volume 2 Nevertheless, it is not difficult to reduce the whole cenogenetic or disturbed development of this amphigastrula to the true palingenetic formation of the archigastrula of the amphioxus. The Evolution of Man — Volume 1 Hence the distinctive embryonic process of the mammal must have arisen by cenogenetic modifications from the older form of gastrulation of the reptiles and birds. The Evolution of Man — Volume 1 These cenogenetic phenomena are foreign or later additions; they allow us to draw no direct inference whatever as to corresponding processes in our ancestral history, but rather hinder us from doing so. The Evolution of Man — Volume 1 In this we see especially the high scientific value of the biogenetic law and the careful separation of palingenetic from cenogenetic processes. The Evolution of Man — Volume 1 Thorough opponents of the biogenetic law have laid great stress on these and similar cenogenetic phenomena, and endeavoured to urge them as striking disproofs of the law. The Evolution of Man — Volume 2
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