The testes,ovarium and reproductive tube of adult treeshrew in its morphology and weight have marked seasonal changes.
成年树的、巢和生殖管道的形态及重量有明显的季节变化。
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If so, the position of the ovules, even when one is erect and the other suspended within the same ovarium, would follow the selection of any slight deviations in position which favoured their fertilisation, and the production of seed.
如果是这样, 胚珠的位置, 即使一个直立而另一个置在同一个子房内,也将遵循有利于它们受精和子生产的任何轻微位置偏差的选择。