Examlex
Identify and state the historical significance of the following:
-American Red Cross
Cyanobacteria
Photosynthetic bacteria that produce oxygen as a by-product, playing a key role in the early oxygenation of the Earth's atmosphere.
Chlorophyll
a green pigment found in plants and cyanobacteria, essential for photosynthesis as it absorbs light energy.
Peptidoglycan
A polymer consisting of sugars and amino acids that forms a mesh-like layer outside the plasma membrane of bacteria, providing structural support and shape.
Protist Clade
A group within the kingdom of eukaryotic organisms, often single-celled, that are not animals, plants, or fungi but share some similar characteristics with these groups.
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