Which of the Following Provided the Selective Pressures That Most

question 45

Multiple Choice

Which of the following provided the selective pressures that most directly promoted the evolution of photosynthesis?

• A)the drop in surface UV radiation caused by the formation of the ozone layer
• B)the depletion of dissolved organic material from the oceans
• C)the ability of some organisms to use oxygen to generate ATP during respiration
• D)an increase in visible light intensity at the surface of the Earth, caused by solar flares
• E)an increase in volcanic activity and release of CO₂ into the atmosphere

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Definitions:

International Balance

A state in which nations maintain equilibrium in power, influence, and interests to promote global stability.

Organized Labor

A collective group of workers, often in a union, who come together to negotiate wages, hours, benefits, and working conditions.

African Americans

A racial group in the United States with ancestry tracing back to Black African peoples.

Family Lives

The day-to-day practices, routines, and interactions that define the domestic experience within a family unit.