Evolution of Vascular Plants: The Ferns - part 27 of 28. Describes the evolution of vascular systems in land plants. The highly specialized structures that occur in vascular plants are shown through investigation of the fern. Explains the adaptive advanta - 4K stock video

1960s: fern cultures exposed to radiation. Fern culture containing tumors. Fern culture in methionine solution. Abnormal tumor growth in plants. Root of fern. Stem of fern in longitudinal section
1960s: fern cultures exposed to radiation. Fern culture containing tumors. Fern culture in methionine solution. Abnormal tumor growth in plants. Root of fern. Stem of fern in longitudinal section
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Credit:
Encyclopaedia Britannica Films
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1439022249
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