Homogamy occurs in the closed cleistogamous flowers that appear late in the season in certain plants.导致发生自花授粉的可能性很大.Cleistogamous plants produce flowers which either open only partly or not at all.闭花受精植物产生的花只是部分地开放或完全不开放...
Valleys often take the form of deep canyons...山谷经常以深峡谷的形态存在。Valleys often take the form of deep canyons.山谷经常以深峡谷的形态存在。Do you use canyons or do we preserve them all?是使用峡谷呢还是全封闭保存?This mountain range has many high peaks an...
Its are orderly: The head - cervical - two upper limbs - pectoral abdomen - back - two ham - two crus.其顺序为: 头部 - 颈部 - 两上肢 - 胸腹 - 背 - 两大腿 - 两小腿.How does crus open sexual fracture to accompany massive haemorrhage to do?小腿开...