annelids

简明释义

英[ˈænəlɪdz]美[ˈænəlɪdz]

n. [无脊椎]环节动物；[无脊椎]环节动物类（annelid 的复数）

英英释义

单词用法

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例句

1.Both annelids possess a closed circulatory system with tubular hearts and a dorsal and ventral blood vessel. In both specimens, pin the following.

二种环节动物皆具有闭锁循环系，包括管状的心脏及背血管，腹血管。用大头针标示二标本的下列构造：。

2.A similar enlargement In the digestive tract of annelids and Insects.

环节动物或昆虫的消化道中的类似扩大部分。

3.Both annelids possess a closed circulatory system with tubular hearts and a dorsal and ventral blood vessel. In both specimens, pin the following.

二种环节动物皆具有闭锁循环系，包括管状的心脏及背血管，腹血管。用大头针标示二标本的下列构造：。

4.Annelids are soft, moist worms which have rings around their bodies.

环节动物是柔软、黏湿的蠕虫，身体周围有环节。

5.Chitosan is material from deacetylation of chitin, which from arthropod, coelenterate, annelids, protozoans, part of algae and fungi.

壳聚糖是来源于节肢、肠腔、环节、原生动物及海藻和真菌类的甲壳素类物质脱去乙酰基的产物。

6.Hermaphroditic terrestrial and aquatic annelids having bristles borne singly along the length of the body.

雌雄同体的陆栖和水栖环节动物，只在沿身体部位有鬃毛。

7.This hypothesis groups annelids with mollusks and brachiopods in another superphylum, Lophotrochozoa.

该假说将圆环类动物与软体动物和腕足动物归为另一类，冠轮动物。

8.Marine annelids 环节动物, like polychaetes, have bristles that help them swim and move through the water.

海洋annelids 环节动物，如多毛类，有助于它们在水中游泳和移动的刚毛。

9.Some species of annelids 环节动物 can regenerate lost body segments, showcasing their remarkable adaptability.

一些种类的annelids 环节动物能够再生失去的身体段，展示了它们惊人的适应能力。

10.In biology class, we learned that annelids 环节动物 are segmented worms that play a crucial role in soil health.

在生物课上，我们了解到annelids 环节动物是分段的蠕虫，对土壤健康起着至关重要的作用。

11.Earthworms, which are a type of annelids 环节动物, aerate the soil as they burrow through it.

蚯蚓，作为一种annelids 环节动物，在地下钻孔时为土壤通气。

12.The study of annelids 环节动物 helps scientists understand the evolution of segmented bodies in animals.

对annelids 环节动物的研究帮助科学家理解动物分段身体的进化。

作文

Annelids, or 环节动物, are a fascinating group of invertebrates that play a crucial role in our ecosystems. They belong to the phylum Annelida, which includes familiar creatures such as earthworms and leeches. The term 'annelid' comes from the Latin word 'annellus,' meaning 'little ring,' which aptly describes their segmented body structure. Each segment is separated by a septum, allowing for greater flexibility and mobility. This unique feature is one of the many reasons why 环节动物 are so interesting to study.One of the most well-known types of 环节动物 is the earthworm. Earthworms are essential for soil health, as they aerate the soil and help decompose organic matter. Their burrowing activities create channels in the soil, allowing air and water to penetrate deeper layers. This not only benefits the earthworms but also enhances the growth of plants by improving soil structure and nutrient availability. Without 环节动物 like earthworms, our agricultural systems would suffer significantly.Another remarkable aspect of 环节动物 is their diverse habitats. While many people associate them with moist environments, such as gardens and forests, some species inhabit marine and freshwater ecosystems. Marine 环节动物, like polychaetes, can be found in various oceanic regions, contributing to the complexity of marine food webs. These organisms often have specialized adaptations, such as gills for respiration and parapodia for locomotion, showcasing the incredible diversity within the phylum Annelida.Leeches, another subgroup of 环节动物, are often misunderstood. While some leeches are known for their blood-sucking habits, many are detritivores, feeding on decomposing organic matter. Leeches have been used in medicine for centuries, particularly in bloodletting and more recently for their ability to promote healing in certain medical conditions. This medicinal use highlights the importance of understanding 环节动物 beyond their ecological roles.The study of 环节动物 extends beyond their ecological significance; it also provides insights into evolutionary biology. Annelids are considered a key group for understanding the evolution of segmentation in animals. Their body plan offers clues about the evolutionary relationships between different animal groups, including arthropods and mollusks. By examining the genetic and developmental processes in 环节动物, scientists can gain a better understanding of how complex body plans evolved over time.In conclusion, 环节动物 are an essential component of our ecosystems, contributing to soil health, aquatic environments, and even medical advancements. Their segmented bodies and diverse adaptations make them a subject of great interest in biological research. As we continue to explore the natural world, it is crucial to appreciate the role of 环节动物 and the lessons they can teach us about ecology, evolution, and the interconnectedness of life on Earth.

环节动物是一个引人入胜的无脊椎动物群体，在我们的生态系统中发挥着至关重要的作用。它们属于环节动物门，包括众所周知的生物，如蚯蚓和水蛭。‘环节动物’这个词源于拉丁语‘annellus’，意思是‘小环’，这恰好描述了它们分段的身体结构。每个段落由隔膜分开，允许更大的灵活性和移动性。这一独特的特征是为什么环节动物如此有趣的研究对象之一。最著名的环节动物之一是蚯蚓。蚯蚓对土壤健康至关重要，因为它们可以疏松土壤并帮助分解有机物。它们的钻洞活动在土壤中创造了通道，使空气和水能够渗透到更深的层次。这不仅有利于蚯蚓本身，还通过改善土壤结构和养分可用性来增强植物的生长。如果没有像蚯蚓这样的环节动物，我们的农业系统将会受到严重影响。环节动物的另一个显著方面是它们多样的栖息地。虽然许多人将其与潮湿的环境（如花园和森林）联系在一起，但某些物种栖息于海洋和淡水生态系统中。海洋环节动物，如多毛类动物，可以在各种海洋区域找到，促进海洋食物网的复杂性。这些生物通常具有专门的适应性，例如用于呼吸的鳃和用于运动的侧足，展示了环节动物门内的惊人多样性。水蛭是环节动物的另一个子群，常常被误解。尽管一些水蛭因其吸血习性而闻名，但许多水蛭是腐食者，以分解有机物为食。水蛭在医学上已经使用了几个世纪，特别是在放血和最近因其在某些医疗条件下促进愈合的能力。这种医学用途突显了理解环节动物的重要性，超越了它们的生态角色。对环节动物的研究不仅限于它们的生态重要性；它还提供了对进化生物学的见解。环节动物被认为是理解动物分段进化的关键群体。它们的身体结构为理解不同动物群体之间的进化关系提供了线索，包括节肢动物和软体动物。通过检查环节动物的遗传和发育过程，科学家可以更好地理解复杂身体结构是如何随着时间演变而来的。总之，环节动物是我们生态系统的重要组成部分，促进土壤健康、水生环境，甚至医学进步。它们的分段身体和多样的适应性使它们成为生物研究中极具兴趣的话题。随着我们继续探索自然世界，欣赏环节动物的角色及其能教给我们的关于生态、进化和地球上生命相互联系的课题是至关重要的。