本题目来源于试卷: Unity and Diversity A.3 Origin of Cells，类别为 IB生物学
[单选题]
Which of the following is not evidencef k(88d kmk5)fnpjh( +( clk0aw8ynuf to-)* w 1umyu nhn;vh-om support that the last universal common ancestor (LUCA) could have emerg o-uunw1nh)mv m*;y-hed at hydrothermal vents?
A. Similar genetic sequences of organisms near the hydrothermal vents
B. Mineral catalysts for chemical reactions at hydrothermal vents
C. Hydrogen and carbon dioxide presence at hydrothermal vents
D. Morphological similarities of all organisms near these hydrothermal vents
参考答案: D
本题详细解析:
Morphological similarities of organisms near hydrothermal vents could indicate 9irj:mahzdq 5)q *,kz shared adaptations to the extreme environment of hydrothermal vents. However, morphological similarities alone do not necessarily provide direct evidence that LUCA emerged at hydrothermal vents, and certainly, not all organisms at hydrothermal vents have similar morphological features. Therefore Choice D is not ejadq:)h9 mk5* iq, zrzvidence to support that the last universal common ancestor (LUCA) could have emerged at hydrothermal vents.
Similar genetic sequences (Choice A) could suggest a common ancestry or adaptation to a similar environment, potentially supporting the idea that LUCA could have emerged at hydrothermal vents. Mineral catalysts for chemical reactions (Choice B) could provide a favourable environment for the formation of organic molecules, and the presence of hydrogen and carbon dioxide (Choice C) could serve as potential energy sources for early life forms.
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