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One of the Earliest Prokaryotes on Earth Played an Important

Question 41

Multiple Choice

One of the earliest prokaryotes on Earth played an important role in the evolution of multicellular eukaryotes.These early prokaryotes changed Earth's chemistry when they began


A) recycling nutrients locked in organic matter.
B) to produce oxygen as a by-product of photosynthesis.
C) capturing energy from inorganic iron ore.
D) to exist in oxygen-free environments.

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