First autotrophs on the primitive earth was/were
Aerobic
anaerobic
Both (1) and (2)
Photosynthetic protist
Related Questions
Which of the following is NOT a key feature of the Oparin-Haldane theory of the origin of life?
Formation of organic monomers from inorganic gases
Presence of free oxygen in the early atmosphere
Polymerization of monomers to form macromolecules
Coacervates as precursors to the first cells
Urey –Miller’s experiment mixture had the following except
Methane
Hydrogen
Water vapour
Which gas was likely ABSENT in the early Earth's atmosphere according to the Oparin-Haldane hypothesis?
Methane ()
Ammonia ()
Water vapor ()
Oxygen ()
Which theory arguments that life on earth came from outer space?
Abiogenesis
Panspermia
Endosymbiosis
Spontaneous Generation
Big-Bang theory attempts to explain the origin of
Earth
Solar-system
Universe
Contenents
According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?
Methane
Oxygen
Hydrogen
Water vapour
Which of these is considered a likely site for the origin of life?
Volcanic craters
Glaciers
Hydrothermal vents
Deserts
Origin of life as a result of chemical evolution has been properly explained by or the most logical biochemical theory of origin of life has been given by
Oparin and Haldane
Miller and Urey
RNA world hypothesis
Theory of Spontaneous Generation
Creation of new taxa is focussed in
Macro-evolution
Theory of special creation
Sympatric speciation
Theory of pangenesis
The first cell like structure was appeared in
Air
Mountain
Ocean
Soil
