If photosynthesis had not developed on Earth, living organisms would have led a harsher existence because of
A) a much hotter atmosphere.
B) more intense UV radiation reaching Earth.
C) an overabundance of oxygen in the atmosphere.
D) an inability to obtain energy from inorganic compounds.
Correct Answer:
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Q11: What takes place during the first step
Q12: Refer to the figure. Q13: Suppose that a small plant, through photosynthesis, Q14: Suppose that a small plant, through photosynthesis, Q15: What takes place during the second step Q17: Rubisco is important in both photosynthesis and Q18: Refer to the figure showing the results Q19: Refer to the figure showing the results Q20: Refer to the figure. showing the results Q21: As light increases, photosynthetic rates increase. The
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