books أهم إنجازات شلايدن
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# Major Accomplishments of Nelson Mandela
# Spearman's major accomplishments
# Frederick Taylor's major accomplishments
# Gordon Dobson's major accomplishments
# Coulomb's major accomplishments
# Herodotus' major accomplishments
# Thomas Edison's Greatest Accomplishments
# Arnold Sommerfield's Greatest Accomplishments
# John Nash's Greatest Accomplishments
# John Dewey's Greatest Accomplishments
# James Lind's most important accomplishments
# Stephen Hawking's Greatest Accomplishments
# On Justinian's most important accomplishments
# Omar's accomplishments
# Pride in past accomplishments
# Some of King Faisal's accomplishments
# Accomplishments of Pablo Picasso
# Accomplishments of ATIS Aviation Academy
# Appreciate small accomplishments
# Accomplishments of Michel Chall
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Source: mawdoo3.com
أهم إنجازات شلايدن (Info)
توصّلَ العالِمُ شلايدن قبلَ وفاتِه إلى العديدِ من الإنجازات المُهمّةِ في مجالِ علمِ النبات، والأجِنّة، وفيما يلي ذِكرٌ لاثنين من هذه الإنجازات:
- التوصُّل من خلالِ دراسة بُنيةِ النبات إلى أنّ كلَّ جُزءٍ من أجزاءِ النبتة يتشكّلُ من الخلايا، أو من مُشتقَّات الخلايا، وقد أطلقَ على هذه النظريّة اسم تخلُّق النبات (بالإنجليزيّة: phytogenesis).
- إدراكُ دورِ نُواة الخليّة المُهمّ في انتشارِ الخلايا.
