United States or Gabon ? Vote for the TOP Country of the Week !
The germ of a higher animal a mammifer, for instance is the representative of a lower animal full-grown, like the volvox globator; the latter remaining in this initial stage, as an animalcule, through its whole existence; while the former is developed out of it, by successive stages, into a quadruped, or even into a man.
There are "blastaeads" of this kind even among the Protophyta the familiar Volvocina, formerly classed with the infusoria. The common Volvox globator is found in the ponds in the spring a small, green, gelatinous globule, swimming about by means of the stroke of its lashes, which rise in pairs from the cells on its surface.
In this animal there evidently appears a power of reproduction without any maternal apparatus for the purpose of supplying nutriment and oxygenation to the embryon, as it remains attached to its father till its maturity. The volvox globator, which is a transparent animal, is said by Linnæus to bear within it sons and grand-sons to the fifth generation.
It was I who destroyed Ehrenberg's theory that the Volvox globator was an animal, and proved that his "monads" with stomachs and eyes were merely phases of the formation of a vegetable cell, and were, when they reached their mature state, incapable of the act of conjugation, or any true generative act, without which no organism rising to any stage of life higher than vegetable can be said to be complete.
It was I who destroyed Ehrenberg's theory that the Volcox globator was an animal, and proved that his "monads" with stomachs and eyes were merely phases of the formation of a vegetable cell, and were, when they reached their mature state, incapable of the act of conjugation, or any true generative act, without which no organism rising to any stage of life higher than vegetable can be said to be complete.
It was I who destroyed Ehrenberg's theory that the Volvox globator was an animal, and proved that his "nomads" with stomachs and eyes were merely phases of the formation of a vegetable cell, and were, when they reached their mature state, incapable of the act of conjugation, or any true generative act, without which no organism rising to any stage of life higher than vegetable can be said to be complete.
It is the last lesson of modern science, that the highest simplicity of structure is produced, not by few elements, but by the highest complexity. Man is the most composite of all creatures: the wheel-insect, volvox globator, is at the other extreme. We shall learn to draw rents and revenues from the immense patrimony of the old and recent ages.
One of the most remarkable of these, the volvox globator, has exactly the form of the germ which, after passing through a long foetal progress, becomes a complete mammifer, an animal of the highest class. It has even been found that both are alike provided with those cilia, which, producing a revolving motion, or its appearance, is partly the cause of the name given to this animalcule.
Word Of The Day