cribellum वाक्य
उदाहरण वाक्य
मोबाइल
- However, most modern groups of spiders have lost the cribellum.
- The lack of a functional cribellum in araneoids is most likely synapomorphic.
- They often have a calamistrum on metatarsus IV associated with a cribellum.
- The cribellates retained the ancestral character, yet the cribellum was lost in the escribellates.
- Placing Leptonetidae as a derived member of the Haplogynae would require independent evolution of the cribellum.
- The ratio between calamistrum length and cribellum width varies greatly, however, even among related species.
- They also have a calamistrum an apparatus of bristles used to comb the cribellate silk from the cribellum.
- The length of a spider's calamistrum is always equal to or greater than the width of the cribellum.
- Instead, to capture prey the spider uses its legs to comb webbing across its cribellum, a spiked plate near the spinnerets.
- The Deinopoidea ( including the Uloboridae ), have a cribellum a flat, complex spinning plate from which the cribellate silk is released.
- Their tent-like web is very similar to the ones " Oecobius " builds; but Uroctea species do not have a cribellum.
- Some spiders have a cribellum, a modified spinneret with up to 40, 000 spigots, each of which produces a single very fine fiber.
- Subsequent to the analyses that produced the relationships shown above, it was discovered that one leptonetid genus, " Archoleptoneta ", has a cribellum.
- Did it evolve only once, with araneids later losing the cribellum ( and hence cribellate silk ), or did it evolve separately in uloborids and araneids?
- Following John Blackwall in 1841 and Philipp Bertkau in 1878, for a long time the majority of araneologists accepted spiders with a cribellum as a coherent taxon, Cribellatae.
- They possess an organ called a cribellum, which is a kind of comb-like device used to separate fibers of silk drawn from its spinnerets into many extremely fine fibers.
- Many of these still retain a " "'colulus " "', which is thought to be a reduced cribellum, and is of unknown function.
- ""'Cribrarula cribellum " "'is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.
- Kuntner " et al . " themselves considered the presence of cribellum to be a piece of evidence that " M . jurassica " was not in fact a nephilid.
- The presence or absence of a cribellum is used to classify araneomorph spiders into the "'cribellate "'and "'ecribellate "'( not cribellate ) type.
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