散开 发表于 2025-3-26 21:07:12
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,Reproductive Biology of , (Cactaceae): A Dominant Species and Endemic Clonal Cactus from Cuatro Ciénegas Basin and Contiguous Areas in the Chihuahuan Desert,if clonality is frequent, as pollinators tend to visit nearby flowers increasing geitonogamy. The species has a mixed mating system with an outcrossing tendency, where delayed selfing (autogamy and geitonogamy) is a mechanism that ensure reproduction when outcrossing fails.Parabola 发表于 2025-3-27 12:33:22
onstrained through the internalization and appropriation of these rules. It is claimed that the necessity that is so characteristic of mathematics is deontic. Mathematical tasks and mathematical texts primarily employ the imperative mode, and mathematical necessity is thus based on the rules, custom身心疲惫 发表于 2025-3-27 16:37:42
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