There Are Several Hypotheses Considered for the Pathway to Life

question 73

Multiple Choice

There are several hypotheses considered for the pathway to life. The "metabolism (chemical changes) first" pathway has an advantage over the "replicator first" hypothesis in that

• A) it can explain why polymers of nucleic acids are not detected in the prebiotic model systems.
• B) it avoids the problem that DNA is not self-catalytic.
• C) RNA does not have to possess catalytic activity.
• D) metabolism could not provide the energy needed for RNA synthesis.
• E) RNA synthesis is a spontaneous reaction.

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Definitions:

Capital Goods

Long-lasting goods that are used in the production of other goods or services, such as machinery, buildings, and equipment.

Investment In-Kind

Contributions of goods, services, or other non-monetary assets to an investment or project rather than cash.

Surplus Labor

The part of the labor force that exceeds the amount needed for the current level of production.

Earthen Dams

Structures built from natural materials like earth and rock, primarily used to retain water and prevent flooding.