In the oviparous animals the secretion of the vitellus is distinct from that of the albumen; the one takes place in the ovarium, the other in the oviduct or uterus.
Defn: A class of air-breathing oviparous vertebrates, usually covered with scales or bony plates.
Defn: The young or embryo of an animal in the womb, or in the egg; often restricted to the later stages in the development of viviparous and oviparous animals, embryo being applied to the earlier stages.
A class of air-breathing oviparous vertebrates, usually covered with scales or bony plates.
It is clearly ascertained," says Cuvier "that the oviparous quadrupeds are found considerably earlier, or in more ancient strata than those of the viviparous class.
It is easy to imagine the delight which the singular spectacle of a cow climbing upstairs into an invalid's bedroom must have given to the future author of Harpagus and The Oviparous Tailor.
Euro[70] But the question arises, Was this resemblance merely that of two oviparous bipeds, or anything more?
Indra then said, 'O oviparous one, I am highly gratified with these words now spoken by thee.
Let water pitchers filled to the brim, Brahmanas, kine, and other auspicious objects, bless thee, thou oviparous one.
The oviparous monotreme and the marsupial almost certainly represent lower mammalian ancestral stages.
Only two genera, echidna and platypus, survive to bear witness of these old oviparous groups, and these only in New Zealand.
The marsupials, except the opossum, are confined to Australia, and the oviparous mammals, or monotremes, to New Zealand.
Organic remains clearly teach us that there have always been viviparous as well as oviparous creatures, and gemmiparous as well as fissiparous animals and plants.
Descending a little lower, we come to the oviparousand ovoviviparous tribes.
Most of the sharks and rays are viviparous, but in the oviparous species the eggs present some interesting and peculiar forms.
Generally, among the oviparoussnakes the eggs are buried, but some species of boas jealously guard them, enclosing them within the coils of the body.
The extent to which development has proceeded in the oviparous forms before the eggs are laid varies greatly in different species.
Bühler on the other hand, confirmed my own negative result with regard to oviparous Teleosteans, and also found no hypertrophy of the follicle in Cyclostomes which are also oviparous.
The chorion is the proper covering of the ovum, and corresponds to the membrane lining the shell of an egg, in oviparous animals.
Maupertuis, is an exception of the same kind in oviparous quadrupeds.
Oviparous females have, as well as the viviparous, a seminal liquor, which is still more active than the viviparous.
This liquor must enter by some way into the matrix of animals which bear and nourish their foetus within the body, and in others, as oviparous animals, it must be absorbed by the eggs, which may be looked upon as portable matrixes.
Oviparous animals are in general smaller than the viviparous, and produce also more at a birth.
The ovaries of oviparous animals, and the testicles of female viviparous animals, before the season of impregnation, experience a considerable change.
The egg attached to the ovary is in oviparous females, what the glandular substance is in the testicles of viviparous females.
When these particles are more abundant, as in many kinds of birds, and in oviparous fishes, generation is completed before the animal has received its full growth, and their production of individuals is very numerous.
There is another difference in oviparous animals: for fowls and other birds have eggs of different sizes, whereas fish, frogs, &c.
Thus, he says that all viviparous animals which have hair are furnished with mammae, as are also the whale and the dolphin; but those which are oviparous are not so provided.
He then gives a general account of the oviparous quadrupeds, particularly of the Egyptian crocodile and the chameleon, concerning which he relates many interesting circumstances.
He then passes to the cetacea, with which he seems to be nearly as well acquainted as modern naturalists, and reverts to the oviparous fishes, respecting which he presents numerous details.
Those having a heart furnished with a single ventricle, are the Oviparous Quadrupeds, and serpents.
The division of them into viviparous and oviparous he rejects, alleging, that all are in one sense or other oviparous.
Bonnet, that a single impregnation is sufficient for the production of many successive generations, and that they are viviparous in summer and oviparous in autumn.
The same is probable in oviparous exclusions, if the lesser part of eggs must serve for the formation, the greater part for nutriment.
The young of viviparous animals in the womb, and of oviparous animals in the egg, after it is perfectly formed, before which time it is called embryo.
But while, in the higher oviparous vertebrates, the allantois serves the purpose of a lung during the rest of embryonic life, it does not do so in the mammalian embryo.
Then a further change takes place, as between the higheroviparous vertebrates and the mammalian vertebrates.
In them the milk comes out through a flat portion of the ventral skin that is pierced like a sieve, as we still find in the lowest living mammals, the oviparous Monotremes of Australia.
It is then clear that the Marsupials--viviparous Mammals without placenta--are a necessary transition from the oviparous Monotremes to the higher Placentals with chorion-villi.
This long-extinct Promammal was probably evolved from Proreptiles during the Triassic period, and must certainly be regarded as the monotreme and oviparous ancestor of ALL the mammals.
This is the case also with the lowest mammals, the oviparous Monotremes and most of the Marsupials.
Undoubtedly other oviparous species that drop their oothecae long before the eggs hatch also make some attempt to conceal the oothecae by placing them in crevices or covering them with debris.
This is not unexpected, as several additional oothecae may have been deposited by these oviparous females before the eggs of the first oothecae hatch.
Sells stated that the ootheca which contained 96 unidentified chalcids had 16 dentations at the edge; the description fits the ootheca of an oviparous cockroach and not that of L.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "oviparous" in a variety of sentences. We hope that you will now be able to make sentences using this word.
