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习题练习:HL Topic A2.1 Origin of cells

 作者: admin  发布日期: 2025-01-24 21:48    总分: 8分  得分: _____________

答题人: 游客未登录  开始时间: 25年01月24日 10:38  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1. Why are fatty acids or phospholipids important in the f9yxk5s u es ;tner1qj9 xqn10255 weswormation of cells and theire9w11kn5jqx2te n 59essury;w 5x sq0 components?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  2. What is the acronh- rzr*/*trh fym of the organism from which Homo sapiens is believed to have orhrr**- t/zfh riginally evolved?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  3. Which of the following describes the conditions on early, pre-biotic Ea md70g rzeyvtr+ki. w1;f2 dx2rth?


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4#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
4. Viruses are said to be non-living.List two reasbm f8/ vh -nsfz6s;o*yons that viruses cannot be considered as lfy shvs6/omf bn-*z;8 iving organisms.
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5#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
5. Explain why RNA, rather than DNA, likely to be the fir g5v wfqlf2wpc 10d*ns1do*,nst genetic material in living organismsg1 nwn cp*0lv ,qwd*os15fdf2 .
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6#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
6. The Miller-Urey experiment produced organic molecules in an atmosphere thayw c 44cej0ea9aff2 gc/2pwg( t, in 1952, was thought to have been like the atmosphere on earth2f(c ww4y 4cg2 g p/caa9ef0ej prior to the evolution of life. In which way was the experiment’s model atmosphere different from today’s scientific understanding of the atmosphere at the origin of life on earth?
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7#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
7. Explain why the conditioqiuq+4p v,w+ qns on Earth today make the spontaneous formation of organic carbon compounds less likely comp+wiquq, pvq+ 4ared to the conditions on Earth at the time of the origin of life.
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8#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
8. List the essential features that kc6(n 9be6odm z.u0rythe first cells must have possessed to be able to livek69y0c .ed m b6(nzruo and evolve into the life forms that followed.
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