function of circulating and distributing nutriment through the colony.
In this respect the Asiatic species differs very widely from its African relative, whose nutriment is largely composed of boughs and roots.
In the case of the common drone-fly, Eristalis tenax, the individual, from a sedentary maggot living in filth, without any relations of sex, and with only unimportant organs for the ingestion of its foul nutriment, changes to a creature of extreme alertness, with magnificent powers of flight, living on the products of the flowers it frequents, and endowed with highly complex sexual structures.
The point common to all Pteridophyta is that from the first the gametophyte is an independent organism, while the sporophyte, though in the first stages of its development it obtains nutriment from the prothallus, becomes physiologically independent when its root develops.
The commentaries of the Arabians in this respect supplied nutriment more readily assimilated by the pupils than the pure text would have been.
In the Hydromedusae they usually, if not invariably, ripen in the ectoderm, but in the neighbourhood of the main sources of nutriment, that is to say, not far from the stomach.
No regular follicle is formed, but the odcyte absorbs nutriment from the remaining odgonia.
In Hydra the odcyte is a large amoeboid cell, which sends out pseudopodia amongst the odgonia and absorbs nutriment from them.
the numerous galls on the oakbut the gall itself furnishes well adapted protection and abundant stores of nutriment to its particular larva, and often appears to be borne without injury to the plant.
The chief and almost the only use of dung, he thinks, is to divide the earth, to dissolve " this terrestrial matter, which affords nutriment to the mouths of vegetable roots "; and this can be done more completely by tillage.
Hermann Hettner says that not only Leibnitz, Voltaire and Diderot, but Lessing, Mendelssohn, Wieland and Herder, drew the most stimulating nutriment from Shaftesbury.
Correlated with the mode of life are the two features character istic of all Sporozoa: (a) They absorb only fluid nutriment, osmotically, and so lack any organs for ingesting and digesting solid food; and (b) they reproduce by sporulation, i.e.
The upper layer of the soil must therefore be free from weeds, finely pulverized and stocked with a readily-available supply of nutriment.
On the ground that the assimilable nutriment from a given weight of selected fruit and grain and nut and vegetable foods will cost less than the same nutriment obtained from flesh foods.
The female Trypanosomes, on the other hand, grow to a large size, laying up a store of reserve nutriment.
Shelley in Triumph of Life, 201 seq., wrote, "And if the spark with which Heaven lit my spirit Had been with proper nutriment supplied," but the printed editions made it "sentiment."
As is so often the case with animals which eat mud and sand, and extract what little nutriment is afforded by the organic debris therein, the walls of the alimentary canal are thin and apparently weak.
It seemed as though the Renaissance ran a risk of being throttled in its cradle by superfluity of foreign and pedantic nutriment.
Thus a very strong heart, although it may be useful to its possessor for many years, driving the blood rapidly through the vessels, and supplying all his tissues with such abundant nutriment as to enable him to endure great exertion, mental or bodily, may in the end cause death by bursting a vessel in the brain, which might have resisted the pressure of a feebler circulation for years longer.
In order to keep the blood in a satisfactory condition it must be well supplied with fresh nutriment, and the products Nutrition of waste freely eliminated.
The general principle in their preparation is to supply cutt;va- the nutriment for bacterial growth in a form as nearly g y similar as possible to that of the natural habitat of the organisms - in the case of pathogenic bacteria, the natural fluids of the body.
When entirely deprived of nutriment the human body is ordinarily capable of supporting life under ordinary circumstances for little more than a week.
Consequent upon this, after a longer or shorter period, those changes commence in the embryo-sac which result in the formation of the embryo plant, the ovule also undergoing changes which convert it into the seed, and fit it for a protective covering, and a store of nutriment for the embryo.
But these exceptional and dubious forms do not obtain nutriment by sending rootlets in a rhizocephalous manner into their patrons.
Caviar This is the salted roe (fish eggs) of sturgeon Caviar contains twice the nutriment of almost all meats.
It appears probable that there is a vascular connexion be- ` tween these and the male `/ / individuals, which thus derive their nutriment from the neuters.
5), the blastostyles gradually lose their nutritive function and the organs connected with it; the mouth and tentacles disappear, and the blastostyle obtains the nutriment necessary for its activity by way of the coenosarc. In the Calyptoblastea, where the polyps are protected by special capsules of the perisarc, the gonothecae enclosing the blastostyles differ from the hydrothecae protecting the hydranths (fig.
This peculiar relationship suggests at once a symbiosis, the Fungus gaining its nutriment mainly or entirely from the green plant, while the latter in some way or other is able to utilize the free nitrogen of;he air.
These exceptions may be briefly summarized as follows: (1) Certain larvae, provided with food that may be adequate in quantity but deficient in nutriment, may live and go on feeding for many From Miall and Denny (after Vayssiere), The Cockroach, Lovell Reeve & Co.
The head is smaller, often occupied almost entirely above in the male by the very large eyes, which in some species are curiously double in that sex, one portion being pillared, and forming what is termed a "turban," the mouth parts are aborted, for the creature is now incapable of taking nutriment either solid or fluid; the antennae are mere short bristles, consisting of two rather large basal joints and a multi-articulate thread.
General atrophy or emaciation is brought about by the tissues being entirely or partially deprived of nutriment, as in starvation, or in malignant, tubercular, and other diseases of the alimentary system which interfere with the proper ingestion, digestion or absorption of food material.
What it is is not explained, but inasmuch as it is the vehicle in which is conveyed the Host on which the father of the Fisher king depends for nutriment, it seems not improbable that here, as in Diu CrOne, it is to be understood as a reliquary.
The ideal soil for vinegrowing is that which possesses a sufficiency, but not an excess, of nutriment for the plant, and which is so constituted that it will afford good drainage.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.