试题来源: 解析 B 选项分析: A) 进化(Evolution):指物种随时间的遗传变化,涉及种群而非个体。 B) 变态(Metamorphosis):昆虫从幼虫到成虫的形态转变,符合题意。 C) 生长(Growth):仅指体型增大,不涉及形态重构。 D) 适应(Adaptation):生物为环境调整特征,与转变过程无关。 结论:B正确,属于完全变态发育过程。反馈 ...
The vertebrate brain emerged more than ~500 million years ago in common evolutionary ancestors. To systematically trace its cellular and molecular origins, we established a spatially resolved cell type atlas of the entire brain of the sea lamprey—a jawl
These data demonstrate the importance of clonal expansion, WGD and copy number instability in determining the timing and patterns of relapse in non-small cell lung cancer and provide a comprehensive clinical cancer evolutionary data resource.Similar content being viewed by others Evolutionary characterizati...
process through which inpatriates transfer knowledge between HQ and subsidiaries, and provides a more nuanced understanding of the micro-foundations of intra-MNC knowledge transfer processes. Based on these findings, we argue that inpatriation is not merely a staffing method that is complementary to ...
The thinking is that if certain minerals occur here on Earth as a result of a biological process, and if we also find those same minerals on another planet, … this would suggest that life may have once existed there.But—just because a particular mineral is found on say, Mars or Venus...
Setting aside such greats as Darwin and Einstein – whose monumental contributions are duly celebrated – we suggest that innovation is more a process of trial and error, where two steps forward may sometimes come with one step back, as well as one or more steps to the right or left. This...
Setting aside such greats as Darwin and Einstein – whose monumental contributions are duly celebrated – we suggest that innovation is more a process of trial and error, where two steps forward may sometimes come with one step back, as well as one or more steps to the right or left. This...
Dichromatic vision, then, relies on data from only two classes of cones. A higher percentage of human males than females are considered functional dichromats, which still allows for color discrimination (Fig. 1a); however, their color deficiency is commonly called color blindness. In the most ...
Convergent phenotypic evolution often results from similar genetic changes in independent species by a process known as parallel evolution. Sometimes, convergent evolution results from the evolution of a genetic change that is inherited from an ancestral population or from hybridization between species, whi...
The success of many viruses depends upon cooperative interactions between viral genomes. However, whenever cooperation occurs, there is the potential for ‘cheats’ to exploit that cooperation. We suggest that: (1) the biology of viruses makes viral coop