This time was also marked by changes in many other types of organisms. Overall, about 38 percent of the families of marine animals were lost, with percentages much higher in some groups. Ammonoid mollusks went from being very diverse and abundant to being extinct. An extremely abundant set ...
abundant species, and rich genetic variety. As one of the most biodiverse countries in the world, China has a profound understanding of biodiversity, as manifest in traditional Chinese culture and these aphorisms:“Man is an int...
How organisms adapt to environmental conditions and how this process promotes speciation is a key question in evolutionary biology and speciation research. Ecologically based selection promotes adaptive divergence between populations, which may lead to the evolution of reproductive isolation and, ultimately,...
The new paradigm: Organizations as living organisms The trends described above are dramatically changing how organizations and employees work. What, then, will be the dominant organizational paradigm for the next 100 years? How will companies balance stability and dynamism? Moreover, ...
The eye is susceptible to infections caused by a bewildering spectrum of organisms, from prions [1] to arthropods [2] (Table1). Pathology may be restricted to the ocular tissues, or manifest in the eye as part of a systemic infectious disease, with impact ranging from minor nuisance to sig...
Butterfly wings could be used to inspire new technology in solar cells, according to researchers at the Australian National University (ANU) who said that "filtering" light could be a major feature of future solar projects. IOC Evaluation Commission impressed by Paris passion The International Olymp...
Perhaps surprisingly, given the medical importance of certain mosquito genera, relationships between major groups remain largely unknown. The most comprehensive phylogenetic analyses have focused mostly on specific species-groups or lineages (e.g., the Aegypti Group5 or the Anopheles gambiae complex6,7...
Because such muds are a major source of petroleum, scientists believe that petroleum originated as livingorganisms. Where would the sentence best fit? Click on a square [■] to add the sentence to the passage. 14. Directions: An introductory sentence for a brief summary of the passage is pro...
To improve our understanding of the origin and evolution of mycoheterotrophic plants, we here present the chromosome-scale genome assemblies of two sibling orchid species: partially mycoheterotrophic Platanthera zijinensis and holomycoheterotrophic Platanthera guangdongensis. Comparative analysis shows that myc...
Humans, and many other species, are host to diverse symbionts. It is often suggested that the mutual benefits of host-microbe relationships can alone explain cooperative evolution. Here, we evaluate this hypothesis with evolutionary modelling. Our model