The topologic architecture of metazoan trace fossils may be subdivided into 3 clusters, 8 basic topologic configurations, 3 combined topologic configurations and 21 topoichnologic kinds, which are considered to be related to ethologic classifications of trace fossils in origin.
后生动物遗迹的拓扑结构可归并为3 族、8 种基本拓扑型、3 种组合拓扑型和21 种拓扑遗迹类, 它们与习性类有较好的成因联系。
Analysis of their morphologies and features leads to the conclusi on that these structures might have been in connection with metazoan activity, bu t the possibility of their abiotic origin can not be ruled out.
通过对上述构造形态和特征分析,这些构造可能与后生动物的活动有关,但也不排除它们是非生物成因的可能。
The late Neoproterozoic is an important period of biological evolution; and the emergence of metazoa is a representative event, which marked the history of biology evolution having entered a new era.
这一时期是地球上早期生命演化的重要时期 ,特别是宏观后生动物的出现标志着生物演化史进入了一个新纪元。
Studies to estimate the origin time of the Metazoa using molecular data have been steadily increasing in recent years.
后生动物是起源于“寒武纪大爆发”还是经历了一个相对较长的前寒武时期一直是动物进化史上的不解之谜。
Therefore, it has the prominent position in the origin and evolutionary history of organisms. Perhaps the star-like organism represents the early types of coelenterate with original tentacles.
而腔肠动物的出现标志着真后生动物的开始,在生物起源演化历程上占据着极其关键的位置。
A multicellular animal of the subkingdom Metazoa, a division of the animal kingdom in traditional two - kingdom classification systems.
后生动物属后生动物亚界的一种多细胞动物,此亚界是动物界传统的两界区分系统内的一个分支
a structure in which animals lay eggs or give birth to their young.
动物产卵或产生后代的地方。
the offspring at one birth of a multiparous mammal.
一胎多仔的动物一次生的后代。
Ecological characteristics of the macrobenthos in the Dayuwan Bay after the typhoon
台风扰动后大渔湾大型底栖动物的生态特征
the hindquarters
(动物的)两条后腿
Development Characteristics of Interstitial Cells of Cajal in the Gastrointestinal Tracts of Postnatal Mammals
出生后哺乳动物胃肠道Cajal细胞的发育生物学特性研究
Finally, those who hunt them must be punished severely.
最后,对于捕猎珍稀野生动物的人必须严惩。
The Effects of Immobilization on the Biological Characteristics of Posterior Cruciate Ligament of Rabbits;
膝关节制动对兔后交叉韧带生物学性状的影响
Sports Biomechanics of Human Body in Javelin Throw During the Final Thrust Phase;
掷标枪运动最后用力阶段人体的生物力学研究
The Pathological Mechanism of High Signal Intensity on T1 Weighted MR Imaging after Cerebral Ischemia: Animal Study;
脑缺血后T1WI产生高信号病理机制的动物实验
The Ecological Research on Crustacean Zooplankton of Three Gorges Reservoir after Impoundment;
三峡水库蓄水后浮游甲壳动物生态学研究
Biomechanic Effects of Static Stretching after Exercise on Rats Muscles;
运动后静力牵张对大鼠骨骼肌的生物力学影响
Biomechanics Analysis of Left Leg Movement in Final Force of Javelin Throw;
标枪最后用力时左腿动作生物力学分析
Community Structure of Metazoan Zooplankton in Jingpo Lake and Assessment of Water Quality
镜泊湖后生浮游动物群落结构研究与水质评价
Sports Biomechanics Features of Forward and Backward Whip-Kicking in Free Combat
散打前后鞭腿技术的运动生物力学分析
Sports Biomechanics Research on the Action Structure of Drop Jump about Sport Fatigue;
运动性疲劳前后跳深动作结构的运动生物力学研究
Prognostic Value of Biochemical Maker Elevation after Elective Coronary Stent Implantation;
冠状动脉支架植入术后血清生化标记物升高的预后意义