(n.) Orig., a chicken; the young of a fowl; a young eaglet; a nestling; and hence, a feathered flying animal (see 2).
(n.) A warm-blooded, feathered vertebrate provided with wings. See Aves.
(n.) Specifically, among sportsmen, a game bird.
(n.) Fig.: A girl; a maiden.
(v. i.) To catch or shoot birds.
(v. i.) Hence: To seek for game or plunder; to thieve.
Example Sentences:
(1) The birds were maintained at a constant temperature in, dim green light.
(2) Unlike most birds of prey, which are territorial and fight each other over nesting and hunting grounds, the hen harrier nests close to other harriers.
(3) No vaccination reactions were noted, although most birds involved in the trials were carrying Mycoplasma spp.
(4) Precipitating antibodies were found in both lines; they first appeared 7 days after inoculation in P-line birds and 14 days after inoculation in N-line birds, but thereafter there was no difference between the two genetic lines.
(5) The results indicate that, regardless of the photoperiod, no clear functional relationship can be found between the avian pineal gland and thyroid function, although a transitory increase in T4 levels was seen in both pinealectomized and sham-operated birds shortly after the operations.
(6) Differences between parental and nonparental birds in VIP profiles were detected in the ventral portion of the infundibular region.
(7) The enterococcal population of the 'dosed' birds contained a greater proportion of Enterococcus faecium than did that of the control birds while the converse was true for Ent.
(8) Somewhat surprisingly then, in view of the mechanisms in mammals, birds do not seem to use this seasonal message in the photoperiodic control of reproduction.
(9) After 32 days of feeding, body weight, liver weight and egg production decreased in birds fed lead while kidney weights increased.
(10) Phyla as diverse as insects, birds, and mammals possess distinct HRAS and KRAS sequences, suggesting that these genes are essential to metazoa.
(11) Changes in brain size are compared with observations found in other domesticated birds.
(12) The presence in lamprey kidney of a loop which is similar to Henle's loop in mammals and birds indicates that the development of the system of osmotic concentration conditioned by the formation in the kidney of the medulla and from a sharp increase in renal arterial blood supply.
(13) We simply do whatever nature needs and will work with anyone that wants to help wildlife.” His views might come as a surprise to some of the RSPB’s 1.1 million members, who would have been persuaded by its original pledge “to discourage the wanton destruction of birds”; they would equally have been a surprise to the RSPB’s detractors in the shooting world.
(14) Water restriction of HYD birds for 5 days as adults stimulated tubule hypertrophy but not to the same extent as the chronic regimen and with no evidence for hyperplasia.
(15) Thus, the possibility exists that androgen secretion in some chelonian systems may exhibit a high degree of LH specificity like that of mammals and birds.
(16) 1 After the injection of labelled procaine and lidocaine in mice, the location and concentration of radioactivity was demonstrated by autoradiographical methods.2 An accumulation in some endocrine cells such as the pancreatic islets, the hypophysis, the adrenal medulla and certain cells of the thyroid (probably representing the calcitonin-producing parafollicular cells) was shown.3 After the injection of [(14)C]-procaine in chicks, an accumulation of radioactivity was observed in the ultimobranchial gland (which produces calcitonin in birds), but not in the thyroid.4 Radioactivity was also shown to be strongly concentrated in structures containing melanin, such as the pigment of the eye, skin and hair and in some organs involved in the metabolism and excretion of these drugs.
(17) Respiration frequency increased during exposure to 35 (four birds) and 40 degrees C (six birds) in the normally hydrated quail, while in the dehydrated quail, respiration frequency increased only in three birds during exposure to 35 degrees C, and four birds during exposure to 40 degrees C, the frequencies were lower during dehydration.
(18) A man in New Zealand suggested that they need to rid the country of cats to protect their native birds.
(19) Birds showed evidence of increased tolerance, with age, to phenylpropanolamine but not to monensin.
(20) Again, changes in birds fed CTN + OA for 7 days were similar but milder.
Scutellum
Definition:
(n.) A rounded apothecium having an elevated rim formed of the proper thallus, the fructification of certain lichens.
(n.) The third of the four pieces forming the upper part of a thoracic segment of an insect. It follows the scutum, and is followed by the small postscutellum; a scutella. See Thorax.
(n.) One of the transverse scales on the tarsi and toes of birds; a scutella.
Example Sentences:
(1) 3. beta-Sitosteryl linoleate is the major sterol ester of the scutellum and endosperm.
(2) The scutellum of maize is a fully differentiated, nondividing, diploid embryonic tissue.
(3) To our knowledge, this is the first observation of a gradient-type spatial pattern of a eukaryote gene activation occurring in a stable, virtually nondividing tissue such as the maize scutellum.
(4) The gene for isoenzyme I is expressed in the aleurone, scutellum and prominently in young leaves.
(5) A gene (Adhr(r)) which controls the activity of alcohol dehydrogenase in the scutellum of maize has been found.
(6) Immunofluorescent microscopy demonstrates that L3 protein accumulation is tissue-specific, confined to the embryo (scutellum and embryonic axis) and the aleurone layer of developing seed.
(7) In the scutellum of maize kernel after imbibition, lipase activity increased rapidly, concomitant with the decrease in storage triacylglycerols.
(8) In contrast, the gene for isoenzyme EI is transcribed at relatively high levels in young leaves, but also in the scutellum and aleurone of germinated grain.
(9) In situ RNA hybridization in isolated germinating embryo sections demonstrates that the PRms gene is expressed in the scutellum, particularly in a group of inner cells, and in the epithelium lying at the interface of the scutellum and the endosperm.
(10) The HRGP mRNA accumulates in the embryo axis and not in the scutellum and preferentially in dividing and provascular cells.
(11) This marker is R-scm3, which conditions anthocyanin pigment in the aleurone of the endosperm and the scutellum of the embryo.
(12) The scutellum and endosperm together contain 80% of the sterol ester of the seedling.
(13) Enzyme activity in Adh1-3F1124 sporophytic organs (scutellum and roots) is greatly reduced, while activity levels remain normal in the male gametophyte (pollen).
(14) Rates of catalase synthesis and degradation were measured in the scutellum of the germinating maize seedling by the technique of Price, Sterling, Tarantola, Hartley & Rechcigl [J. Biol.
(15) Drones with pollinia on their scutellum visit other orchids, which facilitates pollination.
(16) On germination, there is a transient re-appearance of mRNA to pZE40, with accumulation specifically restricted to the scutellum of the seedling.
(17) The composition of the sterol ester fraction of the shoot, root, scutellum and endosperm of 10-day-old maize seedlings was investigated.
(18) Northern-blot analyses with gene-specific probes indicate that the (1-->3)-beta-glucanase isoenzyme GIII mRNA accumulates in developing leaves; no mRNA transcripts were detected in the aleurone or scutellum of germinated grain, or in mature vegetative tissues.
(19) Histochemical analysis of transgenic plants and their progeny showed that the maize Adh1 promoter is constitutively expressed in root caps, anthers, anther filaments, pollen, scutellum, endosperm and shoot and root meristem of the embryo.
(20) In situ hybridization showed localization of the 1.1-kilobase rice lectin mRNA in root caps and specific cell layers of the radicle, coleorhiza, scutellum, and coleoptile.