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生物 高校生

この(2)は比例式にするとどうなりますか? このままの式だとわかりづらくて、、

37 細胞周期 思考力 次の文を読み、 下の問いに答えよ。 ある植物の根の先端近くの組織の細胞を試料として, 体細胞分裂の観察を行った。 細胞を固定・解離した後, 酢酸オルセイン溶液で染色して押しつぶし、顕微鏡で観 察した。 786個の細胞を観察し, そのうち分裂期の細胞 数は, 表のように 142個であった。 (1) 観察結果から, この組織において, 分裂期の細胞 は全体の何%を占めていると考えられるか。 四捨五 入して小数第1位まで求めよ。 (2) この組織の細胞では、間期と前期に要する時間はそれぞれ何時間か。 四捨五入して 小数第1位まで求めよ。 ただし、この組織の細胞の細胞周期は24時間であるとする。 観察した細胞数(個) 前期 中期 後期 分裂各期の細胞数(個) 終期 計 786 95 12 14 21 142 (3) 次の①~⑤について, この観察結果からの考察として正しいものには○を、誤って いるものには×をそれぞれ書け。 ① 間期の細胞の割合が多いことから, 体細胞分裂は活発に行われていない。 ② 分裂を開始し,終期にまで到達する細胞の割合は全体の約3%である。 ③ 間期と分裂期に要する時間の長さを比較すると、間期が分裂期よりも長い。 ④ この組織内で体細胞分裂は同時に進行するのではなく,細胞ごとに時間的にずれ て生じている。 ⑤ 分裂期全体の中で, 前期に要する時間が約90% を占めている。 12-2

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英語 高校生

広島大学の二次試験対策について質問です。 去年から新しく2個の資料から問題を解く形式に変わりました。慣れるために問題を解きたいんですが、去年の分しかありません(TT) 2個の資料を用いて問題を解いていく形式の長文がある大学の過去問を知っていたら、教えて欲しいです! ↓写真... 続きを読む

(I] Read the following two passages and answer the questions. 資料1 A cave-wall depiction of a pig and buffalo hunt is the world's oldest recorded story, claim archaeologists who discovered the work on the Indonesian island Sulawesi. The scientists say the scene is more than 44,000 years old. The 4.5-metre-long panel features reddish-brown forms that seem to depict human-like figures hunting local animal species. Previously, rock paintings found in European sites dated to around 14,000 to 21,000 years old were considered to be the world's oldest clearly narrative artworks. The scientists working on the latest find say that the Indonesian art predates these. Such artworks are notoriously difficult to date because they can be made with raw materials, such as charcoal(注1), which can be much older than the paintings themselves. But scientists excited the archaeological worid when they reported, in 2014 and 2018, that caves in Sulawesi and Borneo held artworks, including animal paintings, which were older than 40,000 years. The panel seems to depict wild pigs found on Sulawesi and a species of small-bodied buffalo, called an anoa. These appear alongside smaller figures that look human but also have animal traits such as tails and long noses. In one section, an anoa is surrounded by several figures holding spears and possibly ropes. The depiction of these animal-human figures, known in mythology as therianthropes (注 2), suggests that early humans in Sulawesi had the ability to conceive of things that do not exist in the natural world, claim 2 the researchers. The oldest such example from Europe is a half-lion, half-human ivory figure from Germany that researchers have estimated to be 40,000 years old-although Some suggest that it might be significantly younger. A roughly 17,000-year-old painting of a bison chasinga bird-headed human, from Lascaux Cave in France, is considered to be one of the earliest depictions of a clear scene in European rock art. To determine the age of the hunting scene, researchers led by archaeologist Maxime Aubert, at Griffith University, Australia, analysed calcite (注 3) 'popcorn' that had built up on the painting. Radioactive uranium in the mineral slowly decays into thorium. So by measuring the relative levels of different isotopes (往0 of these elements, the researchers were able to determine that calcite on top of one pig began forming at least 43,900 years ago, and deposits (注 5) on two anoas are older than 40,900 years. The dating gives scientists clues about the origins of figurative art. "t has always been assumed that the tradition of figurative painting arose in Europe," says Alistair Pike, an archaeological scientist at the University of Southampton, UK. "This shows the tradition does not have its origins in Europe." But he notes that the researchers dated only the portions of the painting that show animals, so it's possible that the therianthropes were added later. Aubert says the team did not find calcite samples over the therianthropes. Aubert thinks the animals and the therianthropes were painted at the same time. They are of similar colour and weathered in the same way, he notes, and all the other cave art from the region is from the same time period. Archacologist Bruno David, at Monash University in Melbourne, Australia, agrees with Aubert's interpretation. If the entire painting is more than 44,000 years olid, it could mean that early humans arrived in southeast Asia with the capacity for symbolic representation and storytelling. David argues. Archaeologists have already found paint palettes and objects such as eggshells with abstract engravings made by early humans in southern Africa, he adds. “'s probably only a matter of time before narrative paintings of this, and much older age, are found in Africa." (Adapted from Nature, December 11, 2019) (注1) charcoal 木炭 (注2) therianthrope 獣人 (注3) calcite 方解石 (注4) isotope 同位体 (注5) deposit 付着物

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英語 高校生

2枚目下から2段落目のhis first oratorio in Englishだけを見て、 彼にとって初の英語のオラトリオなのか 彼の初めてのオラトリオが英語でかかれたのか、 どちらか特定することは可能ですか??

The two greatest composers of the Baroque era would be George Your group is preparing a poster presentation entitled “The Greatest Baroque Frideric Handel and Johann Sebastian Bach. Handel was born in Halle, | Brandenburg-Prussia (nowGermany), in 1685. Unlike Bach, who was born 54 第5問 (配点 20) is Composer," using information from the magazine article below. rade and four fingers on ト m to be able to perform into a great musical family, Handel's father was a surgeon. rwhich he wrote severa/ apse again wathina yea. Handel composed his S Handel showed an exceptional talent in playing instruments from very early age. He learned harpsichord, violin, and organ from the organist at the Halle parish church, Friedrich Wilhelm Zachow. Zachow recognized a Handel's extraordinary talent and systematically introduced him to a diakand to give charity slist pertormed in D , but enjoyed great variety of styles of music. He also taught Handel composition. It is said L.he was invited byr th. that Handel started to compose at the age of nine. In 1702, Handel became the organist at the Calvinist Cathedral in Halle. The wage was good, but the contract was just for one year. The next sperformed and loved ba In1752, Handel co. Sal. he continued to p year, he moved to Hamburg. He was hired by the orchestra of the Hamburg Oper am Gànsemarkt as a violinist and harpsichordist. In 1705, his first opera Almira was produced. In Hamburg, he made three more operas. He was recognized as a brilliant opera composer. tan three thousand pe Handel was invited to Italy in 1706 by Gian Gastone de' Medici, who had a keen interest in opera. Rodrigo, Handel's first all-Italian opera, was produced in Florence in 1707. In 1709, he produced another opera, Agrippina in Venice. It turned out to be a huge success and ran for 27 nights successively. In Italy, he also composed oratorios like La Resurrezione and II Trionfo del Tempo e del Disinganno. The oratorio 1S a narrative musical work for singers and an orchestra., based on a story from the Bible. Handel moved to England in 1712 and decided to live there permanently (He changed his nationality in 1727.) In 1713, he composed Utrecht Te Deum and Jubilate for Queen Anne, and was granted a yearly income O1 rer ir Ag Cos reciam al the Rigral Acade scanding qpers hke Cioh demy cadsed to functh

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英語 高校生

【2】を教えてください

| 以下の本文を読んで、後の問いに答えなさい。 eve where chocolate comes from? Chocolate is made from cacao beans. (の平均して), and more than 70 percent are from Ghana. In West Africa, cacao farmers are verv poor because their cacao beans are sonv low prices. Therefore, many parents cannot send their children to school. Also, often make their children work on cacao farms to help them. (Oによれば) UNICEF, ( ④の数) such children is about 50,000. Moreover, しn children working on the farms do heavy physical labor. twenty-kilogram baskets full of cacao beans on their heads all day long. A(6解決法) to this ( ®間題 ) is the fair trade system. This ( ©新しい) systeIn Is based on partnership between producers and companies that buy their cacao beans. It guarantees a minimum price for the beans, so the trading conditions are better 101 poor famers. This ( ®許す ) them to receive a higher income and improve their lives. (O結果として), their children do not need to work on the farms and can go to school. (O消費者)also play an important ( ①役割 ) in the fair trade system. It offers them a way to reduce ( ®銭困) through everyday shopping. Fair trade products are usually labeled with a fair trade mark. and sometimes even at convenience stores. shopping can make a difference. When you buy chocolate next time, you should give a little more thought to its bitter truth. For example, they carry Therefore, you can find them easily at shops, Your wise choices through everyday

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