It Is Commonly Thought That Life Originated in Hot Waters

question 68

Multiple Choice

It is commonly thought that life originated in hot waters near marine hydrothermal vents. Which of the following provides evidence in support of this hypothesis?

• A)Thaumarchaeota have high abundance in deep ocean waters.
• B)Euyarchaeota are extremely diverse.
• C)Some bacterial lineages also have thermophilic members.
• D)Early diverging branches on the archaeon tree gave rise to Thaumarchaeota.

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