Systematic palynology in Ebenaceae with focus on Ebenoideae: Morphological diversity and character evolution
نویسندگان
چکیده
منابع مشابه
The Evolution of Morphological Diversity
The diversity of organismic form has evolved nonuniformly during the history of life. Quantitative morphological studies reveal profound changes in evolutionary rates corresponding with the generation of morphological disparity at low taxonomic diversity during the early radiation of many clades. These studies have also given insight into the relative importance of genomic and ecological factor...
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از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...
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ژورنال
عنوان ژورنال: Review of Palaeobotany and Palynology
سال: 2009
ISSN: 0034-6667
DOI: 10.1016/j.revpalbo.2008.10.001