首页
登录
职称英语
Why is phosphorus important for the formation of life? [originaltext]A new study
Why is phosphorus important for the formation of life? [originaltext]A new study
游客
2024-08-13
27
管理
问题
Why is phosphorus important for the formation of life?
A new study suggests lightning strikes that hit Earth after its formation may have unlocked a necessary chemical element to support the beginning of life. Researchers say the lightning may have supplied enough phosphorus to Earth during the first billion years after the planet was formed. Scientists believe life started on Earth about 3.5 to 4.5 billion years ago. Phosphorus is an important element for the formation of life. It helps form cell structures and supports DNA, the material present in nearly all living organisms. But on early Earth, phosphorus is believed to have been locked inside minerals that cannot dissolve in water.
选项
A、It brings light and heat to the world.
B、It provides a special kind of nutrition.
C、It helps produce the needed energy.
D、It helps form cell structures and supports DNA.
答案
D
解析
题目问的是为什么磷对生命的形成至关重要。根据新闻可知,磷是形成生命的重要元素,它能帮助形成细胞结构并支持DNA。故答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/3718051.html
相关试题推荐
We______anyattemptstoinfiltratecompanynetworkstoobtainuserinformation.A
Theconversationistakingplaceatafriend’shouse.[br][originaltext]M1Hi
Theconversationistakingplaceatafriend’shouse.[originaltext]M1Hi.Myn
[originaltext]WMike,we’llneedtorentacarforourtripnextweek.Couldyo
[originaltext]WMike,we’llneedtorentacarforourtripnextweek.Couldyo
[originaltext]WMike,we’llneedtorentacarforourtripnextweek.Couldyo
Underwhatagecan’tchildrenshootadvertisement?[br][originaltext]16.Chil
Underwhatagecan’tchildrenshootadvertisement?[br][originaltext]16.Chil
Whatistheinterviewmainlyabout?[br][originaltext]WItsaysagrowingnumb
Whatistheinterviewmainlyabout?[br][originaltext]WItsaysagrowingnumb
随机试题
[originaltext]Collegesanduniversitiesaredegree-grantinginstitutionsof
Onenightintheearly1600sGalileogottiredofusingthenewfangled(新花样的)
对于湿式自动喷水灭火系统,打开警铃试验阀_______会动作。A.压力开关 B
率先垂范是指导游领队人员的一言一行都会给游客产生示范,因此,导游领队人员在工作期
患儿,女,1岁。多汗夜惊,烦躁不安数日,现筋骨痿弱,立迟行迟,肋串明显,鸡胸,面
五行制化的含义是A.五行相生 B.五行相克 C.相生相克 D.相乘相侮
具有预测直肠癌预后及监测复发作用的指标是A.神经元特异性烯醇化酶(NSE)测定
会计行业协会应该改革和完善其自律机制,有效发挥自律机制在会计职业道德建设中的促进
《母婴保健法》规定的孕产期保健服务不包括A.母婴保健指导 B.孕妇、产妇保健
吊装方案的选择步骤包括( )。A.技术可行性论证 B.安全性分析 C.进度分
最新回复
(
0
)