Zoology - Evolution Question with Solution | TestHub
ZoologyEvolutionOrigin of Universe and LifeMedium2 minPYQ_2016
ZoologyMediumsingle choice
Following are the two statements regarding the origin of life:
(i) The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
(ii) The first autotrophic organisms were the chemoautotrophs that never released oxygen.
Of the above statements which one of the following options is correct?NEET 2016 (Phase 1)
Options:
Answer:
C
Solution:
The first originated organisms were prokaryotic chemoheterotrophs and oxygen was not available on earth at that time so it must be anaerobic too. Even the first autotrophs were dependent on chemicals as oxygen was not released.
Stream:NEETSubject:ZoologyTopic:EvolutionSubtopic:Origin of Universe and Life
⏱ 2mℹ️ Source: PYQ_2016
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