How Did the First Life on Earth Obtain Energy

question 77

Multiple Choice

How did the first life on Earth obtain energy?

• A) photosynthesis in the presence of oxygen
• B) photosynthesis in the absence of oxygen
• C) heterotrophic consumption of organic molecules
• D) autotrophic consumption of organic molecules
• E) phototrophic consumption of inorganic molecules

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Definitions:

Anthropomorphism

The tendency to attribute human characteristics, such as motives, to other animal species.

Objectivity

The principle of being unbiased and impartial, ensuring personal feelings or opinions do not affect the representation of facts.

Dilution

A process of decreasing the concentration of a solute in solution, typically by adding more solvent.

Increased Vigilance

The heightened state of watchfulness and alertness to potential threats or dangers.