physiological natality
常見(jiàn)例句
- The effect of crowding and physiological stress and shortage of food resources were the main reasons for the decline of population natality and yearly increase rate.
種群密度過(guò)高產(chǎn)生的擁擠效應(yīng)和食物資源不足是造成種群出生率和年度增長(zhǎng)率下降的主要原因。 返回 physiological natality