Suppose You Explored a New Planet and Found a Photosynthetic

Multiple Choice

Suppose you explored a new planet and found a photosynthetic organism unlike any on Earth. Also suppose that you repeat Engelmann's classic experiment using this new organism in place of Spirogyra and find that oxygen-dependent bacteria cluster near the green and yellow portions of the spectrum. Which statement summarizes what you have learned?

A) This organism is green, just like plants on Earth.
B) This organism utilizes the most energy-rich photons of the spectrum.
C) The Sun of this new planet emits different wavelengths of light than those emitted by Earth's Sun.
D) This new organism is using yellow and green light to drive photosynthesis.