Exhibit 6-18
-When moving from point a to point b in Exhibit 6-18:
Definitions:
Flame Cells
Collecting cells that have cilia; part of the osmoregulatory system of flatworms.
Protonephridia
Protonephridia are excretory structures found in some invertebrates, functioning in osmoregulation and waste removal.
Tubules
Small tube-like structures in organisms, often found in organs such as kidneys, where they play a role in the transport and processing of bodily fluids.
Highly Soluble
Describes a substance that is capable of being dissolved to a great extent in a given solvent.
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