We understand the meaning of it, if you refer to the initial stage in which Protozoa, formed by repeated divisions of the group of cells, turn into a hollow sphere so as prolificacy type Volvox. The original hollow ball formed on the surface of units, equipped with cilia, and not being according to their form absolutely spherical, would, moving through the water, permanent position, due to what is one part of a spheroid more often than others, getting in touch with perceived by the body nutrients. Arising thus the division of labor would be profitable and therefore, having a tendency to increase descending from generations, would end the differentiation, the same the germs found in low types of Metazoa, which, having egg-shaped form, provided with hairs on only one part of its surface. This that way there would be a form in which the bearing hairs individuals would the motion function of the delivery air; whereas for other individuals, took ambiguously nature, would pass the function of absorption of food: there are a variety of evidence like primordial specialization of {See Balfour. T. I, p. 149 and vol. II, p. 343-344.}. Noting directly that the heredity of this process from their ancestors derived from the fact that low types of Metazoa a hollow ball is the first form, take a developing embryo, I'm here pay attention to the item the highlights - namely that the primary differentiation of the hollow sphere is determined by the difference in nature of communication its parts with the environment and its content and that the subsequent invagination arises from the constancy of the this difference in the nature of communication.
We understand the meaning of it, if you refer to the initial stage in which
ReplyDeleteProtozoa, formed by repeated divisions of the group of cells,
turn into a hollow sphere so as prolificacy type Volvox.
The original hollow ball formed on the surface of
units, equipped with cilia, and not being according to their form absolutely
spherical, would, moving through the water, permanent position, due to
what is one part of a spheroid more often than others, getting in touch with
perceived by the body nutrients. Arising thus
the division of labor would be profitable and therefore, having a tendency to increase
descending from generations, would end the differentiation, the same
the germs found in low types of Metazoa, which, having egg-shaped
form, provided with hairs on only one part of its surface. This
that way there would be a form in which the bearing hairs individuals would
the motion function of the delivery air; whereas for other individuals,
took ambiguously nature, would pass the function of absorption of food:
there are a variety of evidence like primordial
specialization of {See Balfour. T. I, p. 149 and vol. II, p. 343-344.}. Noting
directly that the heredity of this process from their ancestors derived from
the fact that low types of Metazoa a hollow ball is the first form,
take a developing embryo, I'm here pay attention to the item
the highlights - namely that the primary differentiation of the hollow
sphere is determined by the difference in nature of communication its parts with the environment and its
content and that the subsequent invagination arises from the constancy of the
this difference in the nature of communication.