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| Oak leaves | A neuron, showing dendrites and cell body at left, axon and axon terminals at right | T2 Bacterial Virus | ||
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| A brittle star, member of the phylum Echinodermata | Hummingbirds | Octopus eye (left), human eye (right), showing convergent evolution | ||
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| Geckos | Life cycle of the slime mold stages, Dictyostelium | Antibody molecule | ||
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| Mitotic Metaphase | Kangaroo Rats | Arthropods/ | ||
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| Sea Urchin Larva | Chimp/Human Hands | Darwin's finches, with different beak morphologies found on different islands in the Galapagos chain |
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