This fact was made out for vertebrate animals by the great embryologist Von Baer; and the Russian naturalist Kowalevsky, to whose researches I have already alluded, shewed that this was true for a large number of invertebrate animals.
The epiblast has been observed to extend itself over the yolk by a similar process in many invertebrate forms.
Thus he believed that, though the embryos of Vertebrates might agree amongst themselves, there was no resemblance between them and the embryos of any invertebrate group.
This is particularly observable between the vertebrate and invertebrate animals.
Upon a future occasion I shall consider more at large the station to which insects seem entitled in a system of invertebrate animals, which will not accord exactly with that assigned by MM.
Throughout the whole of this succession of geographical changes, the flora and invertebrate fauna of Europe appear to have undergone no important revolution in their specific characters.
We have seen that the predicate of the scientific judgment is a hypothesis which is consciously applied to certain data.
As a more simple illustration, we may cite the common experience of a person who is uncertain concerning the identity of an approaching object, say, another person.
The membrane surrounding the mouth of an invertebrate animal.
The entire covering of an invertebrate animal, as echinoderm or cœlenterate; the integument.
With reference to invertebrate forms attention may be called to the observations of Buetschli (80).
It is then swallowed by some invertebrate host[159].
They then pass into a second, usually invertebrate host, and encyst.
The free-swimming or creeping embryos make their way into or on to the body of some invertebrate (occasionally vertebrate) form, usually a Mollusc, to undergo the first stage in their metamorphosis.
The general fact that impregnation consists in the fusion of the spermatozoon and ovum has now been established for some forms in the majority of invertebrate groups (Arthropoda and Rotifera excepted).
Page 215, Preliminary Report on Aquatic Invertebrate Fauna, in the Y.
It is a curious and noteworthy fact that in some invertebrate animals in which no haemoglobin occurs, we meet with its derivatives.
The black pigments which occur among both vertebrate andinvertebrate animals often have only one attribute in common, viz.
Gould, Report on theinvertebrate animals of Massachusetts, xli, 378.
Report on the invertebrateanimals of Massachusetts, xli, 378.
In the Cambrian or oldest fossiliferous formations there is already a large and varied fauna, in which the leading groups of invertebrate life are represented.
The mollusca of the Tertiary deposits of the Paris basin became, in the hands of Lamarck, the basis on which invertebrate palaeontology was founded.
Defn: The entire covering of an invertebrate animal, as echinoderm or coelenterate; the integument.
The liver of invertebrate animals is usually made up of cæcal tubes, and differs materially, in form and function, from that of vertebrates.
Defn: That part of the eye of an invertebrate which corresponds in function with the retina of a vertebrate.
Defn: Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria.
The more or less firm or hardened framework of an invertebrate animal.
Defn: The external hard or firm covering of manyinvertebrate animals.
A thick muscular stomach found in many invertebrate animals.
Defn: Having the ganglia of the nervous system unsymmetrically arranged; -- said of certain invertebrate animals.
In epibolic invagination, a phenomenon in the development of some invertebrate ova, the epiblast appears to grow over or around the hypoblast.
They have a very simple organization, and are formed only of a cell which contains a nucleus: they live in the intestines of many invertebrate animals, especially in the articulata.
There are different leeches which inhabitinvertebrate animals.
We learn from the comparative anatomy of the vermalia that this spinal cord has been evolved from a dorsal acroganglion, or vertical brain, of an invertebrate ancestor.
Invertebrate ancestors with a simple vertical brain: the vermalia.
In particular, the form of the embryo of man and the mammals is correctly presented, and the vastly different development of the lower invertebrateanimals is also considered.
There is a laboratory of invertebrate paleontology of Paleozoic age, with a corps of paleontologists.
There is a laboratory of invertebrate paleontology of Cenozoic and Mesozoic age, with a corps of paleontologists.
There is a laboratory ofinvertebrate paleontology of Quaternary age, with a corps of paleontologists, Mr. Wm.
The human embryo passes through the whole space representing the invertebrate animals in the first month, a mere fraction of its course.
The fear of man is no instinctive feeling in the invertebrate creation.
Sexual and non-sexual modes of reproduction are illustrated by that well-defined group of marine invertebrate animals, called cirripedia Fig.
In none of theinvertebrate animals is there any special absorbent system.
Among the invertebrate animals are numerous examples of the deterioration of a race.
Passing to the invertebrate animals, we meet with two other modes of reproduction, the gemmiparous and fissiparous.
In the oldest rocks we find chiefly the more simple invertebrate animals, and the vertebrated tribes appear at first in the form of fish, then of reptiles, then of birds, then of mammals, and last of all of man.
At times I made missionary excursions, and not only did I reconcile many, but I confirmed some Catholic families in the Faith, and placed two Priests in stations where they might be useful to souls.
How this house was searched, and how they seized my companion and my manuscripts, but missed me, I have related.
Owen's Lectures on the Comparative Anatomy and Physiology of the Invertebrate Animals, London, 1855, p.
Owen's Lectures on the Comparative Anatomy and Physiology of the Invertebrate Animals, 2nd edit.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "invertebrate" in a variety of sentences. We hope that you will now be able to make sentences using this word.
