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.
Following are the two statements regarding the origin of life: (i) The earliest organisms that appeared on the earth were non-green and presumably…
NEET UG 2016 — Zoology Evolution
2016mcqmedium
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?
Official previous-year question
Held on 30 Apr 2016 · Verified 9 Jul 2026.
Options
- A
(i) is correct but (ii) is false
- B
(ii) is correct but (i) is false
- C
Both (i) and (ii) are correct
- D
Both (i) and (ii) are false
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Evolution in other years
More NEET UG Evolution questions
Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.
2025easy
Match List I with List II:  Choose the correct answer from the options given below :
2024easy
Which one of the following factors will not affect the Hardy-Weinberg equilibrium?
2024easy
Given below are some stages of human evolution. Arrange them in correct sequence. (Past to Recent) A. Homo habilis B. Homo sapiens C. Homo neanderthalensis D. Homo erectus Choose the correct sequence of human evolution from the options given below:
2024medium
The flippers of the Penguins and Dolphins are the example of the
2024medium
Other Zoology topics for NEET UG
Keep practicing Evolution
Work through every NEET UG Evolution PYQ, year by year.