| 单词 | unimpregnated |
| 例句 | A worker bee may be an offspring of an unimpregnated queen bee. Degeneracy Its Causes, Signs and Results 2011-05-02T02:00:17.657Z The shepherds about Mount Œta rub the udders of unimpregnated goats with nettles, and thus obtain abundance of milk from them. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History The best crop is the first of the season, which consists of the unimpregnated females; the later crops contain an admixture of young insects and skins, which contain proportionally little colouring matter. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" The unimpregnated womb may be filled with a dropsical fluid, but the pregnant womb is more liable to become overdistended by an excess of fluid in the inner water bag in which the fetus floats. Special Report on Diseases of Cattle The Fertilized Egg.—When a fertilized or impregnated egg is set free from the surface of the ovary, it follows the same course that the unimpregnated egg does until it reaches the uterus. Treatise on the Diseases of Women The belief that it is the function of the spermatozoa to communicate life to the ovule seems a strange one, seeing that the unimpregnated ovule is already alive and continues for a considerable time alive. The Variation of Animals and Plants Under Domestication, Volume II (of 2) At eleven in the forenoon, we placed ourselves opposite a hive containing an unimpregnated queen five days old. New observations on the natural history of bees Now Loeb and others have succeeded in certain forms—even in a vertebrate like the frog—in inducing development in unimpregnated ova. Science and Morals and Other Essays I was completely at a loss to account for this, as the bees having an unimpregnated drone-laying Queen, ought not to have had a single female egg from which they could rear a Queen. Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual Examination with the oiled hand in the rectum will reveal the womb of the natural, unimpregnated size and shape and with both horns of one size. Special Report on Diseases of the Horse But what determines the development of the gemmules of the first-formed or primordial cell in the unimpregnated ovule, is beyond conjecture. The Variation of Animals and Plants Under Domestication, Volume II (of 2) We set at liberty an unimpregnated young queen, eleven days old, whose hive had always been deprived of males. New observations on the natural history of bees A longing for an atmosphere unimpregnated with petrol eventually sends me stumbling up the companion-way to the deck. Punch, or the London Charivari, Vol. 150, February 16, 1916 If a colony which has an unimpregnated queen seeks to unite with another which has a fertile one, then almost as a matter of course they are destroyed! Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual This affection can occur only in the pregnant animal, while dropsy of the womb occurs in the unimpregnated. Special Report on Diseases of the Horse I found them all to be unimpregnated females; I have never yet discovered a male among them. The Dawn of Reason or, Mental Traits in the Lower Animals The natural size of the unimpregnated womb is three by one and three-quarter inches, and its weight is one to two ounces. The Eugenic Marriage, Volume I. (of IV.) A Personal Guide to the New Science of Better Living and Better Babies The unimpregnated bloom falls off at its appointed date, as everybody knows; but if fertilized it remains entire, saving the labellum, until the seed is ripe, perhaps half a year afterwards—but withered, of course. About Orchids A Chat This colony was afterwards supplied with an unimpregnated queen, but they refused to accept of her, and attempted at once to smother her to death. Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual Such are seen in the unimpregnated eggs of birds, and in the unimpregnated seed-vessels of vegetables. Zoonomia, Vol. I Or, the Laws of Organic Life Parthenogenesis, name given to asexual reproduction, that is, to reproduction of plants or animals by means of unimpregnated germs or ova. The Nuttall Encyclopædia Being a Concise and Comprehensive Dictionary of General Knowledge The importance of distinguishing between the membranes of the unimpregnated ovulum and those of the ripe seed, must be sufficiently evident from what has been already stated. Narrative of a Survey of the Intertropical and Western Coasts of Australia Performed between the years 1818 and 1822 — Volume 2 On the left side he found a second uterus, unimpregnated and of usual size, to which another ovary and tube were attached. Anomalies and Curiosities of Medicine We will not complicate the application of the method by describing other details of the development, but would merely suggest that when a lot of ova are fertilized a small portion should be left unimpregnated. Scientific American Supplement, No. 392, July 7, 1883 Thereupon both the sharks began to manifest great uneasiness, and eventually with fluster and splashing they worked among the fissures of the coral and shot out into the unimpregnated sea. My Tropic Isle Exceptions occasionally occur in which, from the stamen being slightly shorter than usual, the pollen is deposited a little beneath the stigmatic surface, and such flowers drop off unimpregnated unless they are artificially fertilised. Effects of Cross and Self Fertilisation in the Vegetable Kingdom This third coat is formed by the proper membrane or cuticle of the Nucleus, from whose substance in the unimpregnated ovulum it is never, I believe, separable, and at that period is very rarely visible. Narrative of a Survey of the Intertropical and Western Coasts of Australia Performed between the years 1818 and 1822 — Volume 2 Cleveland describes a discharge of an anomalous deciduous membrane during pregnancy which was probably from the unimpregnated half of a double uterus. Anomalies and Curiosities of Medicine PARTHENOGENESIS.—The production of living organisms from unimpregnated eggs or seeds. The Origin of Species by means of Natural Selection, 6th Edition |
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