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
2023-10-16
63
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/3103435.html
相关试题推荐
Thereisdistinctionbetweenreadingforinformationandreadingforundersta
Thereisdistinctionbetweenreadingforinformationandreadingforundersta
Thereisdistinctionbetweenreadingforinformationandreadingforundersta
Thereisdistinctionbetweenreadingforinformationandreadingforundersta
Whendoesthesongbirdperformatapdance?[br][originaltext]Inthissection,
Whendoesthesongbirdperformatapdance?[br][originaltext]Inthissection,
Whendoesthesongbirdperformatapdance?[originaltext]Inthissection,youw
Whenisthemanleaving?[br][originaltext]Listentotheconversation,markea
Whenisthemanleaving?[br][originaltext]Listentotheconversation,markea
Themanworksatapostoffice.[br][originaltext]Listentotheconversation,
随机试题
Doyoufindgettingupinthemorningsodifficultthatit’spainful?Thism
下列有关税法和税收的表述,不正确的是()。A.税收的征税主体是国家,除了国家之
某教师在“激素调节”一节的教学实录如下: 一、导入新课 通过生物课外兴趣小组
患者,男性,35岁。因股骨干骨折给予持续骨牵引,下列护理不妥的是A.抬高床脚
( )处理风险时会充分利用市场分散和转移风险,保险是管理风险的主要方式。
根据规定,储存容器中充装的二氧化碳质量损失大于()时,二氧化碳灭火系统的检漏装
下列选项中不属于物权的特征的是( )。A.是一种支配权 B.客体一般为物
当期初余额不平衡时,仍可进行如下操作()。A、填制凭证 B、记账 C、结账
审查施工方案的基本内容是否完整,包括( )。A.工程概况 B.施工现场平面
由于科学技术进步,不断创新出性能更完善、效率更高的设备,使原有设备相对陈旧落后,
最新回复
(
0
)