scheme pharyngeal nephridium with blood glands pheretima earthworm |
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| navigate by keyword : excretory system pharyngeal nephridial nephridia earthworm pheretima praepinguis darnleiensis nephridium nephrostome metanephridia structure protonephridia morphology anatomy worm schematic diagram scheme schema biology lesson animal vector isolated white detail element zoology science educational material internal background blood glands gland black silhouette |
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| Scheme of pharyngeal nephridium with blood glands of Pheretima earthworm for biology lesson. Diagram of excretory system of earthworm |
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