(n.) An animal having six feet; one of the Hexapoda.
Example Sentences:
(1) The cercal system, which may have evolved with the first terrestrial hexapods, reaches its zenith in the orthopteroid insects, but was replaced in holometabolan insects by visual startle mechanisms with descending giant interneurons.
(2) Maximum parsimony analyses and monophyly testing within arthropods indicate that myriapods (millipedes and centipedes) form a sister group to all other assemblages, whereas crustaceans (shrimps and lobsters) plus hexapods (insects and allied groups) form a well-supported monophyletic group.
(3) Recaptured migrants with infected ticks indicate that they transmit B. burgdorferi to hexapod larvae.
(4) Parsimony analysis further suggests that onychophorans form a sister group to chelicerates (spiders and scorpions) and crustaceans plus hexapods, but this relationship is not well supported by monophyly testing.
(5) The vectors are the hexapod larvae of Rhipicephalus sanguineus, R. turanicus and H. truncatum; the filarial infective stages appear during the larval-nymph moult of the vector (11 days at 26 degrees C).
(6) Histological and ultrastructural analysis of the development of C. roussilhoni--a filarial parasite of A. africanus with skin-dwelling microfilariae--in the hexapod, larva of R. sanguineus.
Isopod
Definition:
(a.) Having the legs similar in structure; belonging to the Isopoda.
(n.) One of the Isopoda.
Example Sentences:
(1) Biochemical analyses of the dorsal integument of the isopod, Armadillidium vulgare, revealed that sepiapterin, biopterin, pterin, isoxanthopterin and uric acid accumulated in the yellow-colored chromatophores which are distinguishable from ommochrome chromatophores.
(2) All the symbionts identified, which include several cytoplasmic incompatibility microorganisms, several endosymbionts of terrestrial isopods, and symbionts of two thelytokous Trichogramma wasp species, belong to a monophyletic group of related symbionts, some of which have previously been detected in several insects exhibiting cytoplasmic incompatibility.
(3) The maximum life span of larvae was limited to 1 yr by annual turnover of the isopod population.
(4) The Cd concentrations in isopods in test containers with ground litter as food were similar to those in isopods in micro-ecosystems with intact leaves as food.
(5) In the neurogenic heart of the isopod crustacean Porcellio dilatatus, external K+ removal depolarized the membrane (K0 effect) whereas subsequent restoration of K+ resulted in a rapid hyperpolarization (K1 effect).
(6) In Crustaceans, the free amino acid composition of the hemolymph thus appears, both quantitatively and qualitatively, to be a biochemical character of marine Isopods when compared to Oniscoids Isopods and to Decapods.
(7) Instead, he was taken off the plane in an isopod, a special device designed to keep contagion from spreading.
(8) Some hematological constants (number of erythrocytes--hemaglobin rate--hematocrit--mean blood corpuscule volume--mean corpuscular hemoglobin concentration--mean corpuscular hemoglobin) are studied in non-parasitized and parasitized Teleost fishes (parasites are Cymothoid Isopods).
(9) and the larval Corynosoma sp., the nematode Procamallanus sp., the copepods Caligus quadratus, Clavellotis dilatata and Bomolochus peruensis and one unidentified isopod of the family Cymothoidae.
(10) The free amino-acid composition of the sera of 4 species of Isopods Cymothoidae (Meinertia oestroides, Meinertia parallela, Emetha audouini, Anilocra physodes) are very similar, and present the same characteristics, both quantitatively and qualitatively, as those of free marine Isopods of the family Sphaeromatidae and Idoteidae.
(11) The compound eyes of the terrestrial isopod Porcellio scaber comprises about 20 ommatidia.
(12) The rate of parasite development in laboratory-infected isopods was linearly related to temperature between 9 and 22 C; the temperature threshold was 5.7 C, and the larval parasite required 598 degree-days above threshold to complete development.
(13) The toxicities of the bait decomposed in situ for different lengths of time (12, 9, 6, 3, and 0 months) to the land isopod Armadillidium vulgare and the soil millipede oxidus gracilis were higher than the undecomposed baits.
(14) Exposure to artificially contaminated litter with Cd alone or litter from contaminated field sites with Cd, Pb, Zn, and Cu resulted in comparable Cd concentrations in the isopods.
(15) The utilization of marine amphipods Podocerus fulanus and Corophium acherusicum, and the marine isopod Paracerceis sculpta in heavy metal toxicity tests (Cd and Cu) demonstrated on the one hand, the value of these animals as tests subjects when exposed to various polluting agents and, on the other hand their tolerance to heavy metals in acute toxicity tests.
(16) 2 fuel oil was of relatively low toxicity to the intertidal isopod Lygia exotica as indicated by the TLm values of over 100% for the WSF and 73 ppm at 24 and 48 hours and 36.5 ppm at 96 hours for the OWD.
(17) In the neurogenic heart of the isopod crustacean Porcellio dilatatus, repetitive electrical stimulation of the cardiac nerves elicted either cardio-acceleratory or cardio-inhibitory effects depending on the stimulation parameters.
(18) Circumstantial evidence indicates that the hematophagous isopod, Gnathia maxillaris and not leeches, could be a vector of H. bigernina.
(19) Among laboratory-infected isopods, 2 mechanisms that could regulate the larval parasite population were detected: intraspecific competition and direct, parasite-induced isopod mortality.
(20) Growth of the isopods was not affected by Cd or by the combination of Cd, Pb, Zn, and Cu, but differed between the test systems.