Selective pressures acting on plant life histories can drive extreme specialization. One example of such specialization is the evolution of dioecious breeding systems.
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As further evidence, Tang-Martinez points out that female lionesses may mate times a day with a string of different partners. Zip Code. Although thermogenesis in cycads has not been extensively studied, male strobili often produce higher temperatures for longer periods of time than females, and female strobili of some species do not undergo thermogenesis Tang et al. Function of leafy sepals in Paris polyphylla: photosynthate allocation and partitioning to the fruit and rhizome.
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One person found this helpful. The costs of reproduction in plants. He forced them to do manual labor, planting these trees that you see here on the B.