C
According to this theory of chemical evolution, <u>synthesis of organic molecules </u>would need to occur first for life to evolve.
Explanation:
This theory (of Abiogenesis) is corroborated by the <u>Miller –Urey experiment </u>that attempts to replicate the early conditions of the earth. It is believed that organic molecules were created spontaneously through chemical reactions spurred by bolts of lightning resulting in the creation of simple organic molecules like lysine amino acid. These organic molecules made the oceans to become a primordial soup for life.Some hypotheses also claim that this was also possible in the bottom of the ocean in the hydrothermal vents when the earth was even hotter and more active.
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Answer:
B. Chemical energy to heat energy
Explanation:
The answer is B. The giraffe has changed in height over time bevause its DNA has changed, making them taller than the giraffes in the past.