What's the difference between osphradium and silt?
Osphradium
Definition:
(n.) The olfactory organ of some Mollusca. It is connected with the organ of respiration.
Example Sentences:
(1) In preparations containing a portion of the osmoregulatory pathway, the osphradium was stimulated by 90% ASW, and the responsiveness of neuron R15, which putatively regulates antidiuresis, was tested.
(2) Contrary to earlier reports on related ampullariids, the osphradium proved to be ontogenetically older than the mantle and mantle cavity.
(3) The osphradium of the animal is presented as a small torulus formed by supporting ciliated cells.
(4) Most chemosensory neurons are primary sensory neurons, although secondary sensory cells have been reported in the osphradium of some prosobranch gastropods.
(5) Other evidence was from mature adults whose osmoreceptive organ, the osphradium, was lesioned; they mimicked osmoregulation measured in old adults.
(6) The osphradium unites the epithelial canal and the ganglion consisting of two cell populations.
(7) By means of scanning and transmissive electron microscopic methods osphradium of Siphonaria grisea has been studied.
(8) These run to the skin in the mantle area near the pneumostome and osphradium.
(9) In contrast to the model established for A. californica, in A. brasiliana no relationship was found between exposure of the osphradium to dilute media and electrical activity in neuron R15, which is in accordance with the lack of an osmoregulatory mechanism in this species.
(10) Between the epithelial-supporting cells, the putative sensory elements consist of thin neurites (0.4-1.5 micron in diameter) that reach the sea-water side of the osphradium.
(11) The osphradium of Aplysia californica, a sensory organ, is a small yellow-brown epithelial patch located in the mantle cavity immediately anterior to the rostral attachment of the gill.
(12) Ciliary supporting and microvillous cells are described; they do not form any specific for the osphradium zones on its surface.
(13) Perfusion of osphradium of A. brasiliana with dilute seawater (95-80%) did not affect electrical activity of the bursting neuron R15; perfusion with 70 and 60% seawater caused a transient increase in the duration of the quiescent period.
(14) Chemoreceptors are commonly associated with the oral area, the tentacles, and the osphradium, which lies in the mantle cavity.
Silt
Definition:
(n.) Mud or fine earth deposited from running or standing water.
(v. t.) To choke, fill, or obstruct with silt or mud.
(v. i.) To flow through crevices; to percolate.
Example Sentences:
(1) Corthine said he had told Cameron 3m tonnes of silt needed to be removed from the Parrett to get it flowing properly again.
(2) Adsorption and movement of carbofuran (a systemic nematicide) were studied using two Indian soils (clay loam and silt loam) of alluvial origin.
(3) Residue content of water samples is normally one-tenth to one-hundredth that of silt, but is much higher during periods of heavy runoff.
(4) Dredging creates turbidity in the water that reduces the amount of light reaching the coral, affecting photosynthesis, while silt that settles on the coral interferes with its ability to feed itself.
(5) As the silt cleared, we found ourselves on a flat plain of yellow-tinged mud, inscribed with pits, burrows and tracks by species that eke out their existence on the detritus that settles from above.
(6) Dam reservoirs trap silt, which decreases their storage capacity and reduces power generation.
(7) Treated seeds were also planted in pots containing Nile silt for testing the efficiency of rhizobia as affected by the fungicide and the pelleting treatments.
(8) The larval lamprey is a filter-feeder who dwells in the silt of freshwater streams and the adult is an active predator found in large lakes or the sea.
(9) At Pelican Island, a 2.5 mile strip in the Barataria Bay, crews used 2.5m cubic yards of sand and silt mined from the Gulf of Mexico to build dunes and marshes, and rolled out protective fences around newly planted grasses.
(10) Their dams slow rivers down, reducing scouring and erosion, and improve water quality by holding back silt.
(11) Before the dam the closure was enforced for about 40 days, during which the canals were closed and dried up, and the silt deposited on their beds during the Nile flood dredged out together with the snails and aquatic weeds.
(12) The Davis family benefited when a group of locals shifted 15 tons of sand and silt from their garden.
(13) Equilibrium adsorption coefficient (K) values measured using a batch-slurry technique follows the order clay loam greater than silt loam soil.
(14) Only 2% of what is flowing through the sewers is sewage; the rest is water and accumulated debris – the vast amount of water you flush down the toilet and all the water and silt that seeps into the sewers when it rains.
(15) The soil is so called "Terra Roxa" (red soil) and in its physicochemical composition there is a great amount of iron oxides, silica (silt, agril laceous material), aluminium, manganese, organic compounds.
(16) The use of the selective media with gentamicin for plating out silt substrates containing mainly Micromonospora had practically no effect on the increase in the number of the Micromonospora cultures grown.
(17) The flood cycles passed on the salts that accumulated from evaporation and passed new layers of silt onto the farmlands around the marshes.
(18) Once you have started dredging, "it must be repeated after every extreme flood, as the river silts up again".
(19) "A silt fence ensures that mud down deep doesn't seep through," said Hidehiko Nishiyama, Japan's spokesman on nuclear safety.
(20) It was shown that Micromonospora predominated in moist soils and especially in such substrates as silts where their content with respect to the all actinomycetous isolates amounted to 88.9 per cent.