所以第一段是中心思想,根据文章第一段"Researchers have found two different species of sea snake that were previously thought to be extinct."(研究者已经发现两种之前被认为灭绝的不同的海蛇物种。)可知,文章中心思想是两种海蛇物种的发现,与A选项符合,故选A。这是一篇说明文。文章主要介绍了科学家发现了两种...
Palaeophis This snake was as long as a school bus! Paleoparadoxia Scientists were able to determine that Paleoparadoxia was exclusively aquatic by comparing the rib cages of fossils to modern species of mammals like dugongs and polar bears. Panthera atrox (American Lion) Panthera atrox was about...
These desert-loving plants are endemic to many places around the world, and they are generally very easy to take care of. Today, let’s take a deep dive and look at 100 different types of succulent plants. What Is a Succulent? The term “succulent” doesn’t reference a specific genus,...
Roughly 170 species of flowering plants belong to the genus Amorphophallus, most of which share the common name voodoo lily. However, only a handful of voodoo lilies are grown by gardeners, because they are picky about their growing conditions and may not be suited to every household be...
Researchers have found two different species of sea snake that were previously thought to be extinct. The snake, discovered off the coast of Western Australia, had not been seen for more than 15 years. “This discovery is really thrilling, and we get another chance to protect these two specif...
Conservation genetics of a wide-ranged temperate snake: same species, different locations, and different behaviourEctothermsPopulation geneticsGene flowConnectivityFragmentationReptile conservationSEX-BIASED DISPERSALPOPULATIONSDIVERSITYTOADConservation Genetics - Even though reptiles are threatened worldwide, few ...
permanent changes in ecosystems throughout the state. Furthermore, some invasive species can impact homes, recreational areas, and even spread diseases to humans. While the number of invasive species continue to rise, there are several plants and animals that rank among the very worst in this ...
All living organisms like flora and fauna undergo the same chain of life events from birth to death. The life cycle of any species includes all the living changes they undergo from the beginning of their developmental stages to the end of their adult sta
of domesticated species to respond to alarm signals from wild individuals. Using sound playback experiments, we assessed the behavioral responses of free-range domestic chickens (Gallus gallus domesticus) in Hainan to alarm calls (test playback) and songs (control playback) of wild Japanese tits ...
Undeniably, plants’ biological activities have been widely recognized to be related to their phytochemical constituents. Similarly, a broad range of compounds have been identified in Verbascum species. They can be grouped into eight major classes, namely saponins, iridoids, phenylethanoid glycosides, ...