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 people have luck and some have no luck and that, whatever people who prefer order say, is the size of it.

" Some prefer " America the Beautiful " over " The Star-Spangled Banner " due to the latter's war-oriented imagery.

Some bicycle parts, particularly hub-based gearing systems, are complex, and many cyclists prefer to leave maintenance and repairs to professional bicycle mechanics.

Some but not most Baptists prefer not to be called Protestants, claiming a direct ancestral line going back to the apostles in the 1st century.

Some doubt whether there is a unified cognitive science and prefer to speak of the cognitive sciences in plural.

Some authors of technical documents may prefer either mouse devices or the more generic pointing devices.

Some academics prefer to transliterate the term as Khalīfah.

Some dancers prefer to hold the arms much lower, similar to conventional ballroom positioning.

Some consumers prefer the taste of soda manufactured with sugar.

Some people also prefer to have the information on their tags transferred to a smaller, sometimes golden or silver tag by a jeweler, as the original tag can be considered too large and bulky by some.

Some forms of synthesis, like, for instance, sampling and additive synthesis are not feasible in analog synthesizers, while on the other hand, many musicians prefer the character of analog synthesizers over their digital equivalent.

Some prefer the Wade-based Taoism because it is more familiar than Daoism and because the borrowing is a fully assimilated English word anyway ; such words are generally unaffected by later systems of romanization.

Some theorists prefer to stick to Euclidean space and say that there is no dual.

Some Protestants prefer to call it an ordinance, viewing it not as a specific channel of divine grace but as an expression of faith and of obedience to Christ.

Some aficionados who prefer class-A amplifiers also prefer the use of thermionic valve ( or " tube ") designs instead of transistors, especially in Single-ended triode output configurations for several claimed reasons:

Some ' hard ' eurosceptics such as UKIP prefer to call themselves euro-realists rather than ' sceptics ', and regard their position as pragmatic rather than " in principle ".

Some proponents of spelling reform view homophones as undesirable and would prefer that they were eliminated.

Some noted brass pedagogues prefer to instruct the use of the embouchure from a less analytical point of view.

Some authors prefer to write all expressions covariantly.

Some luthiers prefer this method of construction as they claim it allows better sustain of each note.

Some veterinarians prefer radioiodine treatment over surgery because it does not carry the risks associated with anesthesia.

Some users prefer " C " style presses over " O " presses, as there is more room to place bullets into cartridge mouths on " C " presses.

Some prefer monogamous relationships for sex, and others may prefer many different partners throughout their lives