books حبل تكاثر
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# Vegetative propagation
# artificial vegetative propagation
# Methods of propagation of conifers
# olive tree propagation methods
# Gardenia propagation method
# Propagation by offshoot
# Propagation by reproduction
# Methods of propagation and reproduction and their dates
# Moses stick propagation method
# Transition by vegetative propagation
# Propagation of ornamental plants
# Propagation of aromatic plants
# Vegetative propagation and its types
# Propagation of horticultural crops
# Potato propagation methods
# On the propagation of vegetable plants
# Methods of crop propagation in the field
# Disadvantages of vegetative propagation
# vegetative propagation in plants
# Fruit tree propagation methods
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Source: wikipedia.org
حبل (تكاثر) (Info)
الحَبَل هو فترة احتضان الجنين أو الجنين الحي داخل أنثى الحيوانات الولودة. وهي بشكل نموذجي مختصة بالثدييات لكنها أيضا تحدث في بعض الكائنات اللاثديية. يمكن أن تمر الثدييات خلال الحمل بعملية حبل واحدة أو أكثر في نفس الوقت (حبل متعدد).
