(1) A significant proportion of the soluble protein of the organic matrix of mollusk shells is composed of a repeating sequence of aspartic acid separated by either glycine or serine.
(2) Low concentrations of cercaricides are toxic both for cercariae and parthenites from the liver of mollusks and for freely swimming cercariae.
(3) The neuroendocrine bag cell neurons of the marine mollusk Aplysia produce prolonged inhibition that lasts for more than 2 hr.
(4) Changes in the membrane properties of the oocyte of the mollusk, Patella vulgata, were analyzed following the induction of meiosis reinitiation by paleopedial ganglia extract or by the weak base ammonia.
(5) Fossil glycoproteins of the soluble organic matrix are present in an 80-million-year-old mollusk shell from the Late Cretaceous Period.
(6) 12-Hydroperoxy-5,8,10,14-eicosatetraenoic acid (12-HPETE), a lipoxygenase product, simulates the synaptic responses produced by the modulatory transmitter, histamine, and the neuroactive peptide, Phe-Met-Arg-Phe-amide (FMRFamide), in identified neurons of the marine mollusk, Aplysia californica (Piomelli, D., Shapiro, E., Feinmark, S. J., and Schwartz, J. H. (1987) J. Neurosci.
(7) A number of observations, as listed below, suggested a cholinergic basis for inhibitory interactions between photoreceptors of the eye in the nudibranch mollusk Hermissenda crassicornis.
(8) Some vital functions of mollusks (nutrition, oviposition, and support substratum) are closely related to vegetation.
(9) Localization of catecholamines in the nervous system of 12 species of Trematodes parthenitae from marine mollusks has been studied using the method of glyoxilic acid-induced fluorescence.
(10) We tested this idea using the simple nervous system of the marine mollusk, Aplysia californica.
(11) Attempts to introduce infectious or foreign material into oysters and other bivalve mollusks usually involve force or trauma because of immediate, prolonged adduction of the tightly closing valves.
(12) Chromatin organization in the sperm of the bivalve mollusks results from the interaction between a discrete number of protamine-like proteins (PL) and DNA.
(13) Psilotrema simillimum has one intermediate host, the mollusk Bithynia leachi.
(14) Appropriate preparation of food, control of mollusks and planarians, and elimination of rodents are important measures in limiting the further spread of eosinophilic meningitis caused by A. cantonensis.
(15) were found in the land mollusks Bradybaena duplocincta and Jaminia potaniniana asiatica collected on the slopes of Tien-Shan.
(16) Diagnosis of neoplasia in the living mollusk was achieved rapidly and accurately by cytologic examination of circulating blood.
(17) The small hydrotechnique objects, such as irrigation and drainage systems, fish cultivating ponds, isolate and cascade artificial water reservoirs, channels considerably change the ecological conditions of mollusks of the genus Codiella, the first intermediate host of Opisthorchis felineus.
(18) The control measures consisted of the prohibition of the harvest and sale of all bivalve mollusks as well as a public warning to avoid the consumption of such shellfish.
(19) It is expedient to use mollusks, both for testing of N-nitroso compounds and as a biologic indicator of hydrospheric pollution.
(20) Octopamine may have functions of its own in the central nervous system of mollusks.
Seashell
Definition:
(n.) The shell of any marine mollusk.
Example Sentences:
(1) A gravely ill patient had Vibrio alginolyticus conjunctivitis develop, possibly from contact with seashell fragments.
(2) But could beachgoers who pocketed seashells – or bought them at beach shops – really account for what Kowalewski found?
(3) To this end, he photographed seashells that had been collected by his lover, the photographer and revolutionary Tina Modotti, and transformed them, in her words, into something "mystical and erotic".
(4) Even though other factors might play a role in the shells' decline, it is hard not to think that human behaviour is to blame for the decline in seashells.
(5) Purchase whale-stamped coasters, decorative fish, or seashell trays made from bamboo—proceeds go to the Monterey Bay Aquarium .
(6) Low walls around the site are studded with blue milk of magnesia bottles in wave formations and more than 25,000 seashells.
(7) Seashells are an important part of coastal ecosystems: they provide materials for birds' nests, a home or attachment surface for algae, sea grass, sponges and a host of other microorganisms.
(8) You might think twice next time you snag a seashell from the beach and drop it into your pocket: you might be altering the seaside environment.
(9) Dimethylarsinic acid and methylarsonic acid were found in natural waters, bird eggshells, seashells, and human urine.
(10) Calcium retention of seashells treated with phosphoric acid, oyster shells, and limestone using two particle sizes, ground or particulate, was assayed in 98 broiler chicks.
(11) However calm his songs sound, they still roar like a car crash echoing in a seashell.
(12) The study focused on a stretch of coastline on Spain's north-eastern Mediterranean shore called Llarga Beach, where the researchers conducted monthly surveys of seashell abundance between 1978 and 1981.
(13) The notion of a subject, even one belonging to the natural world like a pepper or a seashell, being "completely outside subject matter" is intriguing.
(14) They found that the abundance of seashells had decreased by 60% while tourism had increased in the area by 300%.
(15) (A vintage print of one of his seashells, Nautilus, 1927, sold for $1,082,500 at Sotheby's New York in April.)
(16) In addition, the loss of seashells can't be attributed to fisheries, since the area hasn't seen any new commercial fisheries since the 1970s, the researchers found.
(17) The study focused on a stretch of coastline on Spain’s northeastern Mediterranean shore, where the researchers conducted monthly surveys of seashell abundance between 1978 and 1981.