Escherichia coli cells with fluorescently labeled chromosomal loci.
motility mutants stab-inoculated on a 0.3% agar motility plate. The “halos” and
“rings” likely reflect the motility of this archaeon following gradients of
attractant or repellent chemicals.
Seaweeds in a a tidepool on the coast of Maine.
Malaria parasites (and their kin) can be viewed as minimal eukaryotes, harboring a nucleus (yellow), a secretory pathway the Golgi (purple) and specialized ‘rhotpry’ organelle (black), and two endosymbiotic organelles, the mitochondrion (red) and apicoplast (green).
Drosophila are small flies, typically pale yellow to reddish brown to black, with red eyes. Many species, including the noted Hawaiian picture-wings, have distinct black patterns on the wings. The plumose (feathery) arista, bristling of the head and thorax, and wing venation are characters used to diagnose the family.
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