首页
登录
职称英语
[originaltext]M: So, what is your biology project about?W: It is about microor
[originaltext]M: So, what is your biology project about?W: It is about microor
游客
2024-03-05
5
管理
问题
M: So, what is your biology project about?
W: It is about microorganisms that live by chemosynthesis.
M: Err...what’s chemosynthesis?
W: Well, it’s pretty complicated. You know how most life on Earth depends either directly or indirectly on sunlight?
M: You mean like plants get energy directly from sunlight, and animals eat plants, so they depend indirectly on sunlight?
W: Right. But down on the ocean floor, there is no sunlight. In some places though, there are hydrothermal vents, which are small cracks on the ocean floor. And these vents release heat and minerals from the inside of the Earth into the seawater. And all along the vents there are these unusual microorganisms. They are called archaean. And these archaean use chemical reactions to get their energy from the minerals. The minerals that are released by the vents. So their energy comes from chemical reactions, not sunlight.
M: So chemosynthesis is getting their energy from chemicals?
W: That’s right.
M: That makes archaean very different from other forms of life.
W: And their genetic makeup is very different, too. They are one sort of organisms just like bacteria are, but genetically they are as different from bacteria as we humans are.
M: Wah, that’s a really interesting project.
选项
A、How hydrothermal vents are formed.
B、How living things get energy from sunlight.
C、The harmful effects of certain chemicals in the ocean.
D、Microorganisms that get energy from chemical reactions.
答案
D
解析
What is the woman’s project mainly about?
转载请注明原文地址:https://tihaiku.com/zcyy/3508187.html
相关试题推荐
[originaltext]Here’saquestionforyou.Whataretheliberalarts?Thelib
[originaltext]Here’saquestionforyou.Whataretheliberalarts?Thelib
[originaltext]Here’saquestionforyou.Whataretheliberalarts?Thelib
[originaltext]Howevergiftedsomeonemaybe,heorshestillhadtodevelop
[originaltext]Howevergiftedsomeonemaybe,heorshestillhadtodevelop
[originaltext]Westerndoctorsarebeginningtounderstandwhattraditional
[originaltext]Westerndoctorsarebeginningtounderstandwhattraditional
[originaltext]InJanuary1989,theCommunityofEuropeanRailwayspresented
[originaltext]InJanuary1989,theCommunityofEuropeanRailwayspresented
[originaltext]M:Hello,Lucy.Iheardthatyouarerunningclassesforrecr
随机试题
[originaltext]W:ProfessorPearson,couldyougiveusabriefintroductiono
[originaltext]Itravelalot,andIfindoutdifferent"style"ofdirection
[originaltext]Moreandmorepeoplearoundtheworldareusingwirelessorm
关于温氏法测定红细胞比积的操作,下列说法哪项是错误的A.此法测得结果比真值略低
根据外国人所持签证上标明的字母“L”,我们可以判断其来中国的事由是( )。A.来
某基金合同规定,其政府债券配置比例不低于40%,公司债券配置比例不低于40%,股
患儿男,5岁,低热半月,消瘦轻咳。查体:体温38℃,营养差,右背下部听诊呼吸音减
工作人员不准在SF6设备防爆膜附近停留。若在巡视中发现异常情况,应()。立即报告
把下面的六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项是
工程设备验收前,( )应提交设备验收方案,包括验收方法、质量标准、验收依据,经
最新回复
(
0
)