Some unicellular species rely entirely on external energy sources and have limited or no photosynthetic apparatus.

Some sources mention the use of an abacus called a nepohualtzintzin in ancient Mayan culture.

Some sources state that At < sub > 2 </ sub > does not exist, or at least has never been observed, while other sources assert or imply its existence.

Some early sources call him their father or grandfather, but considering the commonly accepted dates of the fall of Troy ( 1184 BC ) and the founding of Rome ( 753 BC ), this seems unlikely.

Some sources state that following King Edward the Confessor's death in 1066, it was Ealdred who crowned Harold Godwinson as King of England.

Some other sources do classify him as an antipope.

Some sources record that the final blow, with the back of an axe, was delivered as an act of kindness by a Christian convert known as " Thrum.

Sources disagree, as may differing states ' laws, as to what category of plea the Alford plea falls under: Some sources state that the Alford guilty plea is a form of nolo contendere, where the defendant in the case states " no contest " to the factual matter of the case as given in the charges outlined by the prosecution.

Some sources include the requirement that the curve may not cross the line infinitely often, but this is unusual for modern authors.

Some celebrate in a way as near as possible to how the ancient Gaels did, while others observe the holiday with rituals taken from sundry unrelated sources, Gaelic culture being only one of the sources used.

Some sources say that the city may have been named after the Carthaginian general Hamilcar Barca, who was supposed to have founded the city in the 3rd century BC.

Some modern sources allude to a linguistic connection between the bunyip and Bunjil, " a mythic ' Great Man ' who made the mountains and rivers and man and all the animals.

Some incidents mentioned as having taken place within the Triangle are found only in these sources:

Some sources also add neighbouring countries ( for historical, geographical and / or cultural reasons ):

Some sources say he used it as a base for his raids on shipping, yet there is no documentary evidence for this assertion.

Some music historians argue that Chicanos of Los Angeles in the late 1970s might have independently co-founded punk rock along with the already-acknowledged founders from British-European sources when introduced to the US in major cities.

Some sources say McBride was asked for thousands of dollars in compensation from a businessman who owned the rights to the name Cleveland Panthers, an earlier failed football team.

Some sources derive the name of the weapon from the name of its first users — bernarda troopers called " carabiniers ", from the French carabine, from the Old French carabin ( soldier armed with a musket ), perhaps from escarrabin, gravedigger, perhaps from scarabee, scarab beetle.

Some early sources refer to pall mall being played over a large distance ( as in golf ), however an image in Strutt's 1801 book clearly shows a croquet-like ground billiards game ( balls on ground, hoop, bats and peg ) being played over a, garden-sized distance.

Some sources and Marker himself claim that he was born in Ulan Bator, Mongolia.

Some sources later, and even today, list his middle name erroneously as " Tecumseh ", apparently as a result of being nicknamed " The Chief " by teammates.

Some sources, including Newton, refer to the entire force as a centripetal force, even for eccentric orbits, for which gravity is not aligned with the direction to the center of curvature.

Some examples of sources ( with published dates where known ) that documented this approach are:

Some Protestant charismatic and British New Church Movement churches include " apostles " among the offices that should be evident into modern times in a true church, though they never trace an historical line of succession.

Some writers trace the process to the medieval mode of trial by combat, in which some litigants, notably women, were allowed a champion to represent them.

Some of the problems in the Wessex genealogies may have come about because of efforts to integrate Ceawlin's line with the other lineages: it was very important to the West Saxons to be able to trace their ancestors back to Cerdic.

Some Rosicrucians include Francis Bacon among their masters and trace their origins back to the time of Thutmosis III.

Some trace mineral elements ( RDA < 200 mg / day ) are, in alphabetical order:

Some commentators trace the origins of commerce to the very start of communication in prehistoric times.

Some trace fossils such as paw prints of dinosaurs or early humans can capture human imagination, but such traces are relatively rare.

Some lapis lazuli contains trace amounts of the sulfur-rich löllingite variety geyerite.

Some services go so far as to mask the sender's source IP address ( Gmail being a common choice ), making the scammer more difficult to trace to country of origin.

Some trace the modern history of fast food in America to July 7, 1912, with the opening of a fast food restaurant called the Automat in New York.

Some scholars claim Min is the only branch of Chinese that cannot be directly derived from Middle Chinese, whereas others argue that the Min Nan ( or " Hokkien ") language can trace its roots through the Tang Dynasty.

Some trace the name Vipava to the Celtic root vip ( river ).

Some islanders, especially in St David's, trace their ancestry to Native Americans, and many more are ignorant of such ancestry.

Some researchers have attempted to trace various place names to Cimmerian origins.

Some other components such as trace levels of aluminium may result from the treatment process ( see water purification ).

Some 350, 000 overseas Chinese trace their ancestry to Xiamen.

Some participants are interested in getting a historical perspective on a particular period or war, particularly if they can trace their ancestry back to an individual or individuals who were involved.

Some trace it to an investiture by Constantine I ( or one of his successors ); others consider it an imitation of the Hebrew ephod, the humeral garment of the High Priest.

Some scholars trace the origin of puppets to India 4000 years ago, where the main character in Sanskrit plays was known as " Sutradhara ", " the holder of strings ".

Some of the remaining grammar schools can trace their histories to before the 16th century.

Some of the fastest growing US denominations of the late 20th century, such as Calvary Chapel, Hope Chapel Churches, and the Vineyard Churches, trace their roots directly back to the Jesus movement, as do parachurch organisations like Jews for Jesus and the multi-million dollar contemporary Christian music industry.

Some notable series that trace their look and feel to Wizardry include The Bard's Tale and Might and Magic.

Some trace its origins or influences to " cantigas de amigo " ( friends songs ) from the Middle Ages, or Moorish songs, or also to African-Brazilian rhythms.

Some scholars trace the verb " coddle " to " caudle ", but others assign them different derivations.