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Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of algae to different wavelengths of light. He added aerobic bacteria and then noted in which areas the bacteria congregated. He noted that the largest groups were found in the areas illuminated by the red and blue light.
-If you ran the same experiment without passing light through a prism, what would you predict?
Egypt
A country in Northeast Africa, known for its ancient civilization, pyramids, and significant archaeological sites along the Nile River.
Portrait Heads
are artworks, typically sculptures or paintings, focused on depicting the face or head of a person, capturing their likeness and possibly their personality.
Ancestors
Forebears or predecessors in a family's lineage, sometimes venerated or considered a source of guidance or tradition.
Political Enemies
Individuals or groups that are opposed to each other on ideological, policy-related, or governmental power grounds, typically within the context of politics.
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