biology
Showing 493–504 of 764 results
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onion cells, allium epidermis
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optic nerve CL
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ordinary parenchyma (elderberry stem marrow CT )
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organ of Bidder toad, CL
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orthoptera wing
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orthoptere head ( grasshopper) (crusher apparatus)
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oscillaria
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osmotic nerve CL ( rabbit )
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osmotic nerve CL ( rabbit)
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ovaries of lily CT
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ovary cat CT ( many follicles)
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ovary CT yellow corp (cat or rabbit)