The exact number and placement of Endosymbiotic theory | endosymbiotic events is currently unknown, so this diagram can be taken only as a general guide It represents the most parsimonious way of explaining the three types of endosymbiotic origins of plastids.

The alphorn's exact origins remain indeterminate, and the ubiquity of horn-like signal instruments in valleys throughout Europe may indicate a long history of cross influences regarding their construction and usage.

The exact origins of the dachshund are therefore unknown.

Tracing the exact origins of modern science is possible through the many important texts which have survived from the classical world.

The exact origins of Internet slang terms originate largely on the Internet, but the selection process remains seemingly irregular or abstract.

There is an ongoing debate as to the exact origin or origins.

Despite its small size and relatively short existence, the exact nature of the kingdom and its origins, customs, laws, and population is still debated.

Most of the modern scripts of South India have evolved from this script, with the exception of Vatteluttu, the exact origins of which are unknown, and Nandinagari, which is a variant of Devanagari that developed due to later Northern influence.

While the exact origins of chess are unclear, modern rules first took form during the Middle Ages.

Before Władysław took the title of Duke of Poland, probably during the 1070s, he had a relationship with certain Przecława, whose exact origins are unknown, although some sources stated that she belonged to the Prawdzic clan.

The exact origins of the word " zine " is uncertain, but it was widely in use in the early 1970s, and most likely is a shortened version of the word " Magazine.

The exact origins of Two-up are obscure, but it seems to have evolved from pitch and toss, a gambling game involving tossing a single coin into the air and wagering on the result.

While the exact origins of the wave may be in dispute, Seattle was the first place to routinely perform it.

The exact origins of Hardanger embroidery are not known but it is thought to have its beginnings in ancient Persia and Asia.

The exact origins of the Chickasaw are uncertain.

Limavady and its surrounding settlements derive from Celtic roots, although no-one is sure about the exact date of Limavady's origins.

The exact origins of the name Kubera are unknown.

As the exact definition of graphic novel is debatable, the origins of the artform itself are open to interpretation.

The exact origins of the office of Prime Minister are disputed.

The exact origins of Church Creek remain unclear.

The exact application of a toponym, its specific language, its pronunciation, and its origins and meaning are all important facts to be recorded during name surveys.

Its exact origins are obscure, especially as most of the original Balboa dancers have since died.

Rock's exact origins and early influences have been hotly debated, and are the subjects of much scholarship.

While the exact origins are unknown, it is known that hand cannons were used in the Battle of Ain Jalut in 1260.

The game has been strongly solved, meaning that exact equities are available for all 32 million possible positions .< ref name =" strato-variants ">

The exact meaning of his name is uncertain: the common translation is " Lord of the Earth ": the Sumerian en is translated as a title equivalent to " lord "; it was originally a title given to the High Priest ; ki means " earth "; but there are theories that ki in this name has another origin, possibly kig of unknown meaning, or kur meaning " mound ".

It is not certain what exact changes will happen to ENSO in the future: Different models make different predictions .< ref name =" Merryfield2006 "> It may be that the observed phenomenon of more frequent and stronger El Niño events occurs only in the initial phase of the global warming, and then ( e. g., after the lower layers of the ocean get warmer as well ), El Niño will become weaker than it was.

They will be designated by obscure words, letters and / or numbers so that the name of a play does not reveal its exact execution to outsiders.

The exact origin of the name remains a mystery.

The first recorded use of imperial blue as a color name in English was in the 1820s ( exact year uncertain ).

Throughout the rest of Major's premiership the exact identity of the three was blurred, with John Redwood's name frequently appearing in a list along with two of the others.

In 1964, at the 12th CGPM conference, the original definition was reverted to, and thus the litre was once again defined in exact relation to the metre, as another name for the cubic decimetre, that is, exactly 1 dm < sup > 3 </ sup >.

The exact, detailed origin for how this lake became the name for the province is unknown.

Collaminated stellar winds from the central star shape and shock the shell into an axially symmetric form, while producing a fast moving molecular wind .< ref name = mnras360_1 > The exact point when a PPN becomes a planetary nebula ( PN ) is defined by the temperature of the central star.

No exact definition of borders can be given, because the name " Westphalia " was applied to several different entities in history.

Tubman changed her name from Araminta to Harriet soon after her marriage, though the exact timing is unclear.

( Academic theorist, artist, and performer Allucquere Rosanne Stone ( born Zelig Ben-Natan ) lived near the Heinleins at some point in the late 1960s and took the unusual name, but is rather evasive about the exact circumstances.

The spelling of his name includes a hieroglyph which is thought to be connected with steering a boat, although its exact nature is not known.

The phrase " leader of the new school ", coined in hip hop by Chuck D in 1988, and presumably given further currency by the group with the exact name Leaders of the New School ( who were named by Chuck D prior to signing with Elektra in 1989 ), remains popular.

Bachaumont's name is commonly connected with the first volumes of this register, which was published anonymously, long after Petit de Bachaumont's death, under the title Mémoires secrets pour servir à l ' histoire de la République des Lettres, but his exact share in the authorship of those years before his death in 1771 is a matter of controversy.

The ancient name Ηράκλειον was revived in the 19th century and comes from the nearby Roman port of Heracleum (" Heracles ' city "), whose exact location is unknown.

The exact origin of the name is unknown, but it is often attributed to laboratory leader J. Robert Oppenheimer as a reference to the poetry of John Donne.

Even among those who attribute the name to Lord Lamington, there are different claims as to the exact location and creator of the cake itself.

Though his exact relationship to Donald remains uncertain his last name suggests he belongs to the Coot Kin and that he is related to Donald through Elvira Coot, Donald's paternal grandmother.

The autonomy of Semo Sancus from Jupiter and the fact that Dius Fidius is an alternate theonym designating Semo Sancus ( and not Jupiter ) is shown by the name of the correspondent Umbrian god Fisus Sancius which compounds the two constituent parts of Sancus and Dius Fidius: in Umbrian and Sabine Fisus is the exact correspont of Fidius, as e. g. Sabine Clausus of Latin Claudius.

The name is ancient in the Irish Gaelic language, but its exact meaning and derivation remain unclear.

The name Lleu is derived from Proto-Celtic * Lugus, the exact meaning ( and etymology ) of which is still a matter of scholarly debate.