Exoskeletons contain rigid and resistant components that fulfil a set of functional roles including protection, excretion, sensing, support, feeding and acting as a barrier against desiccation in terrestrial organisms.

Exoskeletons have a role in defense from pests and predators, support, and in providing an attachment framework for musculature.

Exoskeletons are made of different materials including chitin ( in arthropods ), calcium compounds ( in corals and mollusks ) and silicate ( for diatoms and radiolarianS

Exoskeletons are external, and are found in many invertebrates ; they enclose and protect the soft tissues and organs of the body.

Exoskeletons contain chitin and when calcium carbonate is added, the exoskeleton grows in strength and hardness.

Exoskeletons have evolved independently many times ; 18 lineages evolved calcified exoskeletons alone.

Exoskeletons, as hard parts of organisms, are greatly useful in assisting preservation of organisms, whose soft parts usually rot before they can be fossilized.

The heavy metal song " Exoskeletons " contains a short riff of Black Sabbath's song " Supernaut " at the end.

Digital technologies such as GSM and CDMA2000 support multiple voice calls on the same channel and offer enhanced features such as two-way text messaging and data services.

The interior regions of the rough, mountainous Aleutian Islands were unable to offer much support to the Aleutian people.

Christine tells Krogstad that she only married her husband because she had no other means to support her sick mother and young siblings, and that she has returned to offer him her love again.

It is also at the same time believably spontaneous and human that Ruth should want to stay with the mother-in-law for whom she had built up an affection, and offer to undertake the back-breaking and humble work of gleaning ( Leviticus 23: 22 ) to support them.

The Pope heeded the arguments contained in the Declaration, influenced by the offer of support from the Scots for his long-desired crusade if they no longer had to fear English invasion.

These forums offer support for beginning designers and players, reviews of new scenarios and general discussions about the use of the scenario editor.

As civil authority rapidly deteriorated, with random acts of violence and theft breaking out across the country, members of the nobility, fearing for their safety, fled to neighboring countries ; many of these émigrés, as they were called, funded counter-revolutionary causes within France and urged foreign monarchs to offer military support to a counter-revolution.

The other conspirators crowded round to offer support.

Of the three passages found in Josephus ' Antiquities, this passage, if authentic, would offer the most direct support for the crucifixion of Jesus.

Great numbers of Christian pilgrims visit Israel, especially in times of trouble for the Jewish state, to offer moral support, and return with an even greater sense of a shared Judeo-Christian heritage.

In addition, legislators will favor interests that offer them the most support.

Besides the doctrinal reasons for plural marriage, the practice made some economic sense, as many of the plural wives were single women who arrived in Utah without brothers or fathers to offer them societal support.

In July 2002, AltaVista, one of the last major search engines to still offer support, finally stopped considering them.

Many object databases, for example VOSS, offer support for versioning.

As medieval Spanish kings often could not offer adequate protection, protective municipal leagues began to emerge in the 12th century against bandits and other rural criminals, and against the lawless nobility or to support one or another claimant to the crown.

Paedobaptists do not completely agree on the reasons for baptizing infants, and offer different reasons in support of the practice.

However it can be configured to offer mouse support, auto indentation, regular expression searches and even syntax highlighting making it more useful.

Support and Services offer maintenance, integrated support solutions, field facilities, logistics and regional aircraft maintenance.

At first Legendre continued to offer support, but then he refused all help.

The prone position, the kneeling position and the standing position offer different amounts of support for the shooter.

Here, monastics teach and counsel the laity at request while laymen and laywomen offer donations for their future support.

" " Breton was consistent in his support for the francophone Anarchist Federation and he continued to offer his solidarity after the Platformists around Fontenis transformed the FA into the Federation Communiste Libertaire.

He was one of the few intellectuals who continued to offer his support to the FCL during the Algerian war when the FCL suffered severe repression and was forced underground.

The S / 360-67, announced in August 1965, was the first production IBM system to offer dynamic address translation hardware to support time-sharing.

About the 4th century BCE, the paean became merely a formula of adulation ; its object was either to implore protection against disease and misfortune, or to offer thanks after such protection had been rendered.

APCs are fundamentally different from the previously used armoured half-tracks in that they offer a higher level of protection from artillery burst fragments, and greater mobility in more terrain types.

This led the Athenians to send him a request for the renewal of Venetian protection and an offer of an annual tribute.

To offer an example of these concepts, O ' Flaherty makes use of " one of the oldest reasons why cities were built: military protection ".

Some offer suitable protection for small yachts on passage.

Many faiths around the world — from Japanese Shinto and Chinese traditional religion, to certain African practices and the faiths derived from those in the Caribbean, to Native American beliefs — hold that ancestral or household spirits offer daily protection and blessings.

While the Thai State offers recourse in the courts to obtain satisfaction after the fact, Thai authorities, NGOs and others generally offer little or no protection in preventing hate speech.

Vehicles and crews suffered considerable damage and losses during the Battle of Mogadishu due to the nature of the urban engagement ; however, the chassis survivability allowed the majority of those crews to return to safety, though the HMMWV was never designed to offer protection against intense small arms fire, much less machine guns and rocket-propelled grenades.

* in missile silos, which offer some protection from military attack ( including, the designers hope, some protection from a nuclear first strike )

# Affordable premium: If the likelihood of an insured event is so high, or the cost of the event so large, that the resulting premium is large relative to the amount of protection offered, it is not likely that the insurance will be purchased, even if on offer.

* Many credit cards offer payment protection plans which are a form of credit insurance.

His knowledge of the Italian language and his affability and good humor, however, often helped in mediating between the papal regime and the British government, and he was able on many occasions to offer advice and protection for British visitors who found themselves in awkward scrapes.

The king is to protect his vassals against damage to their possessions ; in case the clergy through their misuse of the temporalities cause injury, the king must offer protection.

Collisions of this type are frequently lethal ; seatbelts offer no protection, and airbags may not deploy or be of much use if they do.

As the power of cannons grew during the 16th and 17th century, medieval walls became obsolete as they were too thin to offer any realistic protection against prolonged bombardment.

It will offer the user the full protection on their walls from dirt, moisture, stains, etc.

Beginning in 1916, the Pickelhaube was slowly replaced by a new German steel helmet ( the Stahlhelm ) intended to offer greater head protection from shell fragments.

Dr Silvano Gallus, of the Mario Negri Institute for Pharmaceutical Research in Milan, attributed it to lycopene, an antioxidant chemical in tomatoes, which is thought to offer some protection against cancer.

In 1654 the Ukrainian leader, Bohdan Khmelnytsky, offered to place Ukraine under the protection of the Russian Tsar, Aleksey I. Aleksey's acceptance of this offer led to another Russo-Polish War ( 1654 – 1667 ).

Ministers said it would offer better protection for homeowners and " slam shut the door on squatters once and for all ".

Conversely, " conventional " cab tractors offer the driver a more comfortable driving environment and better protection in a collision as well as eliminating the need to empty the driver's personal effects from the tractor whenever the engine requires service.