(Q).
Information:  - Crinozoa is a subphylum of mostly sessile echinoderms , of which , the crinoids , or sea lilies , are the only extant members . Crinozoans have an extremely extensive fossil history which may or may not extend into the Precambrian ( provided the enigmatic Ediacaran Arkarua can be positively identified as an edrioasteroid ) .  - South Australia (abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories. It has a total of 1.7 million people, and its population is the most highly centralised of any state in Australia, with more than 75 percent of South Australians living in the capital, Adelaide, or its environs. Other population centres in the state are relatively small.  - Arkarua adami is a small, Precambrian disk-like fossil with a raised center, a number of radial ridges on the rim, and a five-pointed central depression marked with radial lines of 5 small dots from the middle of the disk center. Fossils range from 3 to 10 mm in diameter.  - Echinoderm is the common name given to any member of the phylum Echinodermata (from Ancient Greek, , "echinos"  "hedgehog" and , "derma"  "skin") of marine animals. The adults are recognizable by their (usually five-point) radial symmetry, and include such well-known animals as sea stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7000 living species, making it the second-largest grouping of deuterostomes (a superphylum), after the chordates (which include the vertebrates, such as birds, fishes, mammals, and reptiles). Echinoderms are also the largest phylum that has no freshwater or terrestrial (land-based) representatives.  - The Ediacaran Period, spans 94 million years from the end of the Cryogenian Period 635 million years ago (Mya), to the beginning of the Cambrian Period 541 Mya. It marks the end of the Proterozoic Eon, and the beginning of the Phanerozoic Eon. It is named after the Ediacara Hills of South Australia.  - Ediacara Hills are a range of low hills in the northern part of the Flinders Ranges of South Australia, around north of Adelaide. The area has many old copper and silver mines from mining activity during the late 19th century. The hills also contain fossils of early multicellular life forms, the Ediacaran biota (lagerstätte), and have given their name to the Ediacaran geological period.  - The Cambrian Period (or ) was the first geological period of the Paleozoic Era, of the Phanerozoic Eon. The Cambrian lasted 55.6 million years from the end of the preceding Ediacaran Period 541 million years ago (mya) to the beginning of the Ordovician Period mya. Its subdivisions, and its base, are somewhat in flux. The period was established (as Cambrian series) by Adam Sedgwick, who named it after Cambria, the Latinised form of "Cymru", the Welsh name for Wales, where Britain's Cambrian rocks are best exposed. The Cambrian is unique in its unusually high proportion of lagerstätte sedimentary deposits, sites of exceptional preservation where "soft" parts of organisms are preserved as well as their more resistant shells. As a result, our understanding of the Cambrian biology surpasses that of some later periods.    After reading the paragraphs above, we are interested in knowing the entity with which 'crinozoa' exhibits the relationship of 'parent taxon'. Find the answer from the choices below.  Choices: - area  - arkarua  - echinodermata  - mya
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echinodermata


(Q).
Information:  - Charles Edward Anderson "Chuck" Berry (born October 18, 1926) is an American guitarist, singer and songwriter and is one of the pioneers of rock and roll music. With songs such as "Maybellene" (1955), "Roll Over Beethoven" (1956), "Rock and Roll Music" (1957) and "Johnny B. Goode" (1958), Berry refined and developed rhythm and blues into the major elements that made rock and roll distinctive, with lyrics focusing on teen life and consumerism and music featuring guitar solos and showmanship that were a major influence on subsequent rock music.  - Rhythm and blues, often abbreviated as R&B or RnB, is a genre of popular African-American music that originated in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when "urbane, rocking, jazz based music with a heavy, insistent beat" was becoming more popular. In the commercial rhythm and blues music typical of the 1950s through the 1970s, the bands usually consisted of piano, one or two guitars, bass, drums, saxophone, and sometimes background vocalists. R&B lyrical themes often encapsulate the African-American experience of pain and the quest for freedom and joy. Lyrics focus heavily on the themes of triumphs and failures in terms of relationships, freedom, economics, aspirations, and sex.  - "Roll Over Beethoven" is a 1956 hit single by Chuck Berry, originally released on Chess Records, with "Drifting Heart" as the B-side. The lyrics of the song mention rock and roll and the desire for rhythm and blues to replace classical music. The title of the song is an imperative directed at the composer Ludwig van Beethoven to roll over in his grave in reaction to the new genre of music that Berry was promoting. The song has been covered by many other artists, including the Beatles and the Electric Light Orchestra. "Rolling Stone" magazine ranked it number 97 on its list of the "500 Greatest Songs of All Time".  - `` Around and Around '' is a 1958 rock song written and first recorded by Chuck Berry . It originally appeared under the name `` Around & Around '' as the B - side to the single `` Johnny B. Goode '' .  - "Maybellene" is one of the first rock-and-roll songs. It was written and recorded in 1955 by Chuck Berry, and inspired/adapted from the Western Swing fiddle tune "Ida Red," which was recorded in 1938 by Bob Wills and his Texas Playboys. Berry's song tells the story of a hot rod race and a broken romance. It was released in July 1955 as a single by Chess Records, of Chicago, Illinois. It was Berry's first single and his first hit. "Maybellene" is considered one of the pioneering rock-and-roll songs: "Rolling Stone" magazine wrote, "Rock & roll guitar starts here." The record is an early instance of the complete rock-and-roll package: youthful subject matter; a small, guitar-driven combo; clear diction; and an atmosphere of unrelenting excitement. The lyrics describe a man driving a V8 Ford chasing his unfaithful girlfriend in her Cadillac Coupe DeVille.    After reading the paragraphs above, we are interested in knowing the entity with which 'around and around' exhibits the relationship of 'record label'. Find the answer from the choices below.  Choices: - chess records  - record  - rock music
(A).
chess records