Our detailed studies of these pollen assemblages reveal elements of both mixed northern hardwood and warm-temperate mesophytic forests. These assemblages are richer than the flora formerly defining the Homerian type section, which had indicated a less diverse, cooler assemblage. The flora exhibits no...
Hierarchical organization of transcriptomically defined cell types Correspondence between transcriptomic cell types and other cellular properties Cell types versus cell states Cell type development How to define cell types? Acknowledgments ReferencesShow full outline Cited by (153) Figures (4)Volume...
Deficient pollen apparently dies, but a deficient egg (n=9) sometimes is fertilized resulting in an embryo with a chromosome number of 2n=19. Seeds with a normal chromosome number (2n=20) in the embryo germinate immediately after sowing, while those with a deficient chromosome number (2n=19...
Furthermore, according to one explanation, the alkaloids in its pollen bring about a floating sensation that resembles dizziness; and since at the same time it irritates the respiratory membranes, it is also possible, apparently, to have the hallucination of drowning in water.But if that were ...
Pollen grains near a couple of white diasies over table horizontal image,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360
Unbelievable flora near the Hora Parashka. Ivan-tea plant. Bees colect pollen,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、
Holocene active faults in China and its adjacent area, and distribution of historical Ms ≥ 7.0 earthquakes are compiled with a sketch map of the five active-tectonic provinces of China (Xu and Deng, 1996). N. Song, Northern Song; S. Song, Southern Song; XTP, Xinjiang tectonic province; ...
Such analysis has led to the foundational “tree of life” as we understand it today. Nonetheless, many issues remain unresolvable in the phylogenetic classification of species, often due to the highly specialized phenotypic features acquired by some species as they adapt to their ecological niches,...
An old world swallowtail butterfly spreads it's wings as it collects the pollen from a near by flower.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联