Leaves of a plant in a petri dish. Black color indicates presence of starch.
Leaves of a plant in a petri dish. Green color is removed from the leaves by chemical process, after which they are sprinkled with iodine. Black color indicates presence of starch. Biology experiment.
Size: 3000px × 2000px
Location: Netherlands
Photo credit: © Menno van der Haven / Alamy / Afripics
License: Royalty Free
Model Released: No
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