...In many cases the apparent tumor is a blighted ovum which has failed todevelop, but has grafted itself on its more fortunate twin and from it hasdrawn its nourishment...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...32105-32106, the size of the largest ovum (2 mm...
Emil K. Urban 「Birds from Coahuila, Mexico」
...32829 and 32831, respectively, and the size of the largest ovum (4×4 mm...
Emil K. Urban 「Birds from Coahuila, Mexico」
...Egg: a simple cell, capable of fertilization,containing the germ, the food-yolk necessary for its nutriment,and a covering membrane: a single ovum or cell from an ovary: thefirst stage of the insect...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Fertilization: takes place when a spermatozoönenters through the micropyle of an ovum and unites with the cellnucleus: loosely applied like copulation or to itscompletion...
John. B. Smith 「Explanation of Terms Used in Entomology」
...It shows us (from analogy) the fertilised ovum breakinginto a cluster of cohering cells, and folding and curving, until the limb-less,head-less, long-tailed fœtus looks like a worm-shaped body...
Ernst Haeckel 「The Evolution of Man」
...Theearlier investigations in this province were chiefly directed to the discovery,by careful observation, of the wonderful facts of the embryonic development ofthe animal body from the ovum...
Ernst Haeckel 「The Evolution of Man」
...1—The human ovum...
Ernst Haeckel 「The Evolution of Man」
...Up to that timethe larger vesicles, in which the real and much smaller ovum is contained, hadbeen wrongly regarded as ova...
Ernst Haeckel 「The Evolution of Man」
...9), we have our ovum (Figs...
Ernst Haeckel 「The Evolution of Man」
...Without going any further here into these very interesting phenomena of thelife of the cell, we will pass on to consider the application of the celltheory to the ovum...
Ernst Haeckel 「The Evolution of Man」
...13 E) this ovum also is very like that of the mammal (Fig...
Ernst Haeckel 「The Evolution of Man」
...When weexamine a very young ovum in the hen’s oviduct, wefind it to be a simple, small, naked, amœboid cell, just like the young ova ofother animals (Fig...
Ernst Haeckel 「The Evolution of Man」
...The nucleus of the ovum, or the germinal vesicle, isthus pressed right to the surface of the globular ovum, and is embedded therein a small quantity of transparent matter, the so-called white yelk...
Ernst Haeckel 「The Evolution of Man」
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