nemertean

简明释义

英[neməˈtiːən;nɪˈmɜːtɪən]美[nɪˈmɜːrtɪən]

n. 纽虫，纽形动物门动物

adj. 纽虫的，纽形动物门的

英英释义

单词用法

同义词

反义词

例句

1.Therefore, this nemertean is defined as Dendrorhynchus zhejiang and its detailed classification needs further research.

暂定该纽虫为浙江枝吻纽虫，详细的分类地位还需进一步的研究。

2.The trend of body weight changes in diluted media indicated that this nemertean is a volume regulator.

扁额原细首纽虫在低盐介质中的体重变化表明了它能够根据环境的渗透压变化进行体积调节。

3.The annual cycle of gonad development and the fertilization of the nemertean, Procephalothrix simulus, were studied by histological method.

用组织切片法对扁额原细首纽虫周年性腺发育及受精过程进行了初步的研究。

4.The annual cycle of gonad development and the fertilization of the nemertean, Procephalothrix simulus, were studied by histological method.

用组织切片法对扁额原细首纽虫周年性腺发育及受精过程进行了初步的研究。

5.In our lab, we are examining the genetic makeup of a specific nemertean 线虫 species.

在我们的实验室中，我们正在检查一种特定nemertean 线虫物种的基因组成。

6.During the marine expedition, we collected several species of nemertean 线虫 for further analysis.

在海洋探险中，我们收集了几种nemertean 线虫以便进一步分析。

7.The nemertean 线虫 has a unique feeding mechanism that fascinates researchers.

这种nemertean 线虫拥有一种独特的捕食机制，令研究人员着迷。

8.The nemertean 线虫 can regenerate lost body parts, making it a subject of interest in regenerative medicine.

这种nemertean 线虫能够再生失去的身体部位，使其成为再生医学的研究对象。

9.The biologist studied the behavior of the nemertean 线虫 in its natural habitat.

生物学家研究了nemertean 线虫在其自然栖息地中的行为。

作文

The world of marine biology is filled with a diverse array of organisms, each with unique adaptations and characteristics. Among these fascinating creatures are the nemerteans, also known as ribbon worms. These soft-bodied invertebrates can be found in various marine environments, from shallow coastal waters to the deep sea. The study of nemerteans provides valuable insights into evolutionary biology, ecology, and even potential medical applications due to their unique biological properties.Nemerteans are characterized by their elongated, ribbon-like bodies, which can vary significantly in size, ranging from just a few centimeters to several meters long. One of the most remarkable features of nemerteans is their proboscis, a specialized feeding structure that can be extended to capture prey. This proboscis is often equipped with a barbed structure that allows nemerteans to immobilize their prey quickly. The diet of these organisms primarily consists of small invertebrates, making them important predators in their ecosystems.In terms of reproduction, nemerteans exhibit a variety of strategies. Some species are hermaphroditic, possessing both male and female reproductive organs, while others have distinct sexes. Many nemerteans engage in external fertilization, releasing eggs and sperm into the water column where fertilization occurs. This reproductive strategy highlights the adaptability of nemerteans to different environmental conditions, ensuring the continuation of their species in various habitats.Ecologically, nemerteans play a crucial role in the marine food web. As predators, they help regulate the populations of smaller invertebrates, contributing to the overall health and balance of marine ecosystems. Additionally, some nemerteans serve as prey for larger animals, further illustrating their importance in the food chain. Their presence in diverse habitats indicates the health of those ecosystems, making them valuable indicators for scientists studying environmental changes.The study of nemerteans has also led to exciting developments in the field of medicine. Certain species produce bioactive compounds that have shown potential in treating various diseases. For example, some nemerteans possess anticoagulant properties, which could be harnessed for developing new blood-thinning medications. Researchers continue to explore the biochemical pathways of these organisms, hoping to uncover more secrets that could benefit human health.In conclusion, nemerteans are a remarkable group of marine invertebrates that offer significant insights into both ecological dynamics and potential medical advancements. Their unique adaptations, such as the proboscis and varied reproductive strategies, highlight the complexity of life in our oceans. As we continue to explore and understand these intriguing creatures, we not only enhance our knowledge of marine biology but also uncover possibilities that may lead to breakthroughs in medicine. Protecting marine habitats is essential for the survival of nemerteans and countless other species, reminding us of the interconnectedness of life on Earth.

海洋生物学的世界充满了各种各样的生物，每种生物都有独特的适应性和特征。在这些迷人的生物中，有一种被称为线虫的软体无脊椎动物。它们可以在从浅海沿岸水域到深海的各种海洋环境中找到。研究线虫为我们提供了对进化生物学、生态学，甚至是潜在医学应用的宝贵见解，因为它们具有独特的生物特性。线虫的特点是它们细长的、带状的身体，大小差异显著，从几厘米到几米不等。线虫最引人注目的特征之一是它们的伸缩器，这是一个专门的捕食结构，可以伸出以捕获猎物。这个伸缩器通常配备有带刺的结构，使得线虫能够迅速麻痹猎物。这些生物的饮食主要由小型无脊椎动物组成，使它们在生态系统中成为重要的捕食者。在繁殖方面，线虫表现出多种策略。一些物种是雌雄同体，拥有男性和女性生殖器官，而其他物种则具有明显的性别。许多线虫进行外部受精，将卵子和精子释放到水柱中，在那里进行受精。这种繁殖策略突显了线虫对不同环境条件的适应性，确保了它们在各种栖息地中物种的延续。在生态学上，线虫在海洋食物网中发挥着至关重要的作用。作为捕食者，它们帮助调节小型无脊椎动物的种群，为海洋生态系统的整体健康和平衡做出贡献。此外，一些线虫还作为大型动物的猎物，进一步说明了它们在食物链中的重要性。它们在各种栖息地的存在表明了那些生态系统的健康，使其成为科学家研究环境变化的宝贵指标。对线虫的研究还在医学领域带来了令人兴奋的发展。某些物种产生的生物活性化合物在治疗各种疾病方面显示出了潜力。例如，一些线虫具有抗凝血特性，可以被用于开发新的血液稀释药物。研究人员继续探索这些生物的生化途径，希望揭示更多可能对人类健康有益的秘密。总之，线虫是一组引人注目的海洋无脊椎动物，为我们提供了对生态动态和潜在医学进展的重要见解。它们的独特适应性，如伸缩器和多样的繁殖策略，突显了我们海洋生命的复杂性。随着我们继续探索和理解这些迷人的生物，我们不仅增强了对海洋生物学的知识，还揭示了可能导致医学突破的可能性。保护海洋栖息地对于线虫及无数其他物种的生存至关重要，提醒我们地球上生命的相互联系。