gastropod

简明释义

英[ˈɡæstrəpɒd]美[ˈɡæstrəpɑːd]

n. [无脊椎] 腹足类动物

英英释义

单词用法

同义词

反义词

例句

1.The fossils of algae, ostracoda, foraminifera, gastropod and polychaeta were found in the tertiary carbonate beds in the west of chaidamu basin.

摘要柴达木盆地西部第三系的碳酸盐岩层中发现有藻类、介形虫、有孔虫、腹足类、多毛类等化石。

2.Of or relating to a gastropod shell that coils clockwise and has its aperture to the right when facing the observer with the apex upward.

右旋的软体动物的螺形外壳上的螺线顺时针螺旋即顶点向上，面对观察者时，螺线向。

3.The fossils of algae ostracoda foraminifer a gastropod and polychaeta were found in the tertiary carbonate beds in the west of chaidamu basin.

摘要柴达木盆地西部第三系的碳酸盐岩层中发现有藻类、介形虫、有孔虫、腹足类、多毛类等化石。

4.The spider conch (Lambis chiragra), a gastropod mollusk with six fingerlike projections sticking out of its shell, is one of these seabed dwellers.

蜘蛛螺(Lambischiragra)就是其中一种海底生物，它属于腹足软体动物，壳上有6个指状突起。

5.Having the shape or form of a turret, as certain long-spired gastropod shells.

具有螺旋状的螺转体的，塔楼状的，如某些有高螺旋圆锥体的腹足类动物的壳。

6.This strange Malaysian gastropod has a shell that defies the standard laws of shell twisting.

这种奇怪的马来群岛的腹足动物对外壳扭曲的标准法则提出了挑战。

7.The spider conch (Lambis chiragra), a gastropod mollusk with six fingerlike projections sticking out of its shell, is one of these seabed dwellers.

蜘蛛螺(Lambischiragra)就是其中一种海底生物，它属于腹足软体动物，壳上有6个指状突起。

8.The garden was full of gastropods munching on the leaves.

花园里满是海螺类在啃食树叶。

9.The gastropod is a class of mollusks that includes snails and slugs.

海螺类是一个软体动物的类别，包括蜗牛和蛞蝓。

10.Some gastropods can be quite colorful, making them popular in aquariums.

有些海螺类颜色非常鲜艳，使它们在水族馆中很受欢迎。

11.Many gastropods have a spiral-shaped shell for protection.

许多海螺类有螺旋形的外壳以提供保护。

12.The study of gastropods can provide insights into environmental changes.

对海螺类的研究可以提供对环境变化的洞察。

作文

Gastropods are a fascinating and diverse class of mollusks that inhabit various environments, from the deep sea to freshwater lakes and even terrestrial ecosystems. The term ‘gastropod’ comes from the Greek words ‘gastro’, meaning stomach, and ‘pod’, meaning foot. This name is quite fitting as these creatures typically have a single, muscular foot that they use for locomotion, which is located on the underside of their bodies. One of the most recognizable features of many gastropods is their coiled shells, although some species, such as slugs, lack a shell entirely. Gastropods play a crucial role in their ecosystems. They are often herbivores, feeding on algae, plants, and decaying organic matter, which helps in nutrient recycling within their habitats. Some gastropods, like certain species of cone snails, are carnivorous and possess venomous harpoons to capture prey. This diversity in diet not only showcases their adaptability but also illustrates their importance in the food web. The anatomy of a typical gastropod includes a well-developed head with sensory organs, such as tentacles and eyes, which allow them to navigate their environment effectively. The foot, which is used for movement, can also be adapted for burrowing or clinging to surfaces, depending on the species. The body plan of gastropods is unique due to a process called torsion, where the body twists during development, causing the anus to be positioned above the mouth. This adaptation may seem odd, but it allows for a more compact form, which can be advantageous in certain habitats.In terms of reproduction, gastropods exhibit a wide range of strategies. Many are hermaphroditic, possessing both male and female reproductive organs, which increases their chances of successful mating in sparse populations. Some species engage in elaborate courtship behaviors, while others simply release eggs into the water, allowing fertilization to occur externally. The young gastropods usually hatch as free-swimming larvae before settling down and undergoing metamorphosis into their adult forms.Conservation of gastropods is essential, as many species face threats from habitat loss, pollution, and climate change. Their sensitivity to environmental changes makes them excellent bioindicators, meaning their presence or absence can provide valuable information about the health of an ecosystem. Protecting their habitats not only benefits gastropods but also the myriad of species that rely on them for food and ecological balance.In conclusion, gastropods are more than just simple creatures; they are a vital component of our planet's biodiversity. Understanding their biology, ecology, and the challenges they face can help us appreciate their role in nature and the importance of conserving their habitats. As we continue to explore the world around us, let us not forget the small wonders like the gastropod">gastropod (腹足纲动物), which contribute significantly to the tapestry of life on Earth.

腹足纲动物是一类迷人且多样的软体动物，栖息在从深海到淡水湖泊甚至陆地生态系统的各种环境中。‘腹足’这个术语源自希腊语中的‘gastro’，意为胃，以及‘pod’，意为足。这一名称非常合适，因为这些生物通常具有一个单一的肌肉足，位于其身体的底部，用于运动。许多腹足动物最显著的特征是它们卷曲的外壳，尽管一些物种，如蛞蝓，完全没有外壳。腹足动物在其生态系统中扮演着至关重要的角色。它们通常是食草动物，以藻类、植物和腐烂的有机物为食，这有助于其栖息地内的养分循环。一些腹足动物，如某些种类的锥螺，是肉食性的，拥有毒性刺来捕捉猎物。这种饮食的多样性不仅展示了它们的适应能力，也说明了它们在食物链中的重要性。典型腹足动物的解剖结构包括一个发达的头部，带有感官器官，如触角和眼睛，使它们能够有效地导航其环境。足部用于移动，依据不同物种的需要，也可以适应于挖掘或附着在表面上。腹足动物的身体结构因一种称为扭转的过程而独特，在发育过程中，身体扭曲，导致肛门位于口腔之上。这种适应看似奇怪，但在某些栖息地中可以形成更紧凑的形态，从而带来优势。在繁殖方面，腹足动物表现出广泛的策略。许多是雌雄同体，既拥有雄性又拥有雌性生殖器官，这增加了在稀疏种群中成功交配的机会。有些物种进行复杂的求偶行为，而其他物种则简单地将卵释放到水中，允许外部受精。幼年腹足动物通常以自由游泳的幼虫形式孵化，然后定居并经历变态，成为成年形态。保护腹足动物至关重要，因为许多物种面临栖息地丧失、污染和气候变化等威胁。它们对环境变化的敏感性使它们成为优秀的生物指示物，意味着它们的存在或缺失可以提供有关生态系统健康的宝贵信息。保护它们的栖息地不仅有利于腹足动物，也有利于依赖它们作为食物和生态平衡的无数物种。总之，腹足动物不仅仅是简单的生物；它们是我们星球生物多样性的重要组成部分。理解它们的生物学、生态学及其面临的挑战，可以帮助我们欣赏它们在自然界中的作用以及保护它们栖息地的重要性。当我们继续探索周围的世界时，让我们不要忘记像gastropod">腹足纲动物（腹足纲动物）这样的小奇迹，它们对地球生命的织锦作出了重要贡献。