vertebrates

简明释义

英[ˈvɜːtɪbrəts]美[ˈvɜrtəˌbreɪts]

n. [脊椎]脊椎动物（vertebrate 的复数）

英英释义

单词用法

同义词

反义词

例句

1.They are vertebrates, that is, animals that have backbones.

它们是脊椎动物，即有脊骨的动物。

2.This is also the same game that early land vertebrates, early amphibians and early relatives of crocs and dinosaurs were playing.

早期的陆地脊椎动物、早期的两栖动物，还有鳄鱼和恐龙的近亲也是如此。

3.Q: To what group of vertebrates does the elephant belong?

大象属于那种脊椎动物?

4.The fossil remains of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more than two centuries.

翼龙是第一批会飞的脊椎动物，它的化石遗迹已经吸引了古生物学家两个多世纪。

5.Dr Haussler wants to sequence 10,000 vertebrates, a sixth of the total number of species of fish, amphibians, reptiles, birds and mammals.

Haussler博士想测序1万种脊椎动物的基因组，这个数目也即是包括鱼类，两栖类，爬行类，鸟类和哺乳动物等所有物种总数的六分之一。

6.The origin of vertebrates and their ancestry are problems still obscured by too few facts.

脊椎动物的起源和它们的始祖问题，由于事实太少仍然不很清楚。

7.Amphioxus is becoming an emerging model organism for insights into the origin and evolution of vertebrates.

文昌鱼是研究脊椎动物起源与进化十分珍贵的模式动物。

8.Mammals are the only group of vertebrates 脊椎动物 that produce milk to feed their young.

哺乳动物是唯一一种能分泌乳汁来喂养幼崽的脊椎动物。

9.Fish are one of the most diverse groups of vertebrates 脊椎动物 found in aquatic environments.

鱼类是水生环境中最具多样性的脊椎动物。

10.Birds, as warm-blooded vertebrates 脊椎动物, have unique adaptations for flight.

鸟类作为温血的脊椎动物，具有独特的飞行适应性。

11.Amphibians are fascinating vertebrates 脊椎动物 that can live both in water and on land.

两栖动物是迷人的脊椎动物，可以生活在水中和陆地上。

12.Reptiles are cold-blooded vertebrates 脊椎动物 that often lay eggs on land.

爬行动物是冷血的脊椎动物，通常在陆地上产卵。

作文

Vertebrates are a fascinating group of animals that possess a backbone or spinal column. This characteristic sets them apart from invertebrates, which lack such a structure. Vertebrates include a wide variety of species, ranging from the majestic mammals to the colorful birds, and even the mysterious fish that inhabit our oceans. Understanding vertebrates is crucial for comprehending the complexity of life on Earth. The classification of vertebrates (脊椎动物) is divided into several major categories: mammals, birds, reptiles, amphibians, and fish. Each of these groups has unique traits that allow them to thrive in their respective environments. For instance, mammals are warm-blooded and typically bear live young, while birds are known for their feathers and ability to fly. Reptiles, on the other hand, are cold-blooded and often lay eggs, whereas amphibians have a dual life, starting in water and transitioning to land as they mature. Fish are primarily aquatic and breathe through gills, showcasing the incredible diversity within the vertebrate (脊椎动物) classification.One of the most remarkable aspects of vertebrates (脊椎动物) is their evolutionary history. It is believed that the first vertebrates appeared over 500 million years ago during the Cambrian period. These early creatures were simple fish-like organisms that eventually evolved into more complex forms. The evolution of vertebrates has led to significant adaptations, allowing them to occupy various ecological niches. For example, the development of limbs in some fish led to the emergence of amphibians, which were the first vertebrates to venture onto land. This transition marked a pivotal moment in the evolution of life on Earth.In addition to their evolutionary significance, vertebrates (脊椎动物) play vital roles in ecosystems. They often serve as predators, prey, and competitors, contributing to the balance of food webs. For instance, large mammals like lions and tigers help control herbivore populations, ensuring that plant life can thrive. Birds contribute to seed dispersal, while fish maintain the health of aquatic ecosystems by controlling algae growth and providing food for other animals. The interconnectedness of these roles highlights the importance of conserving vertebrate (脊椎动物) species and their habitats.Unfortunately, many vertebrate (脊椎动物) species are currently facing threats due to human activities. Habitat destruction, pollution, climate change, and overfishing are just a few of the challenges that jeopardize their survival. Conservation efforts are essential to protect these species and maintain biodiversity. Organizations around the world are working tirelessly to establish protected areas, promote sustainable practices, and raise awareness about the importance of vertebrates (脊椎动物) in our ecosystems.In conclusion, understanding vertebrates (脊椎动物) is essential for appreciating the complexity of life on our planet. Their diverse forms, evolutionary history, and ecological roles demonstrate the intricate connections that exist within nature. As stewards of the Earth, it is our responsibility to protect these remarkable creatures and ensure that future generations can experience the wonders of the natural world. By fostering a deeper understanding of vertebrates (脊椎动物), we can inspire action towards conservation and the preservation of our planet's biodiversity.

脊椎动物是一类迷人的动物群体，它们具有脊柱或脊柱骨。这一特征使它们与缺乏此结构的无脊椎动物区分开来。脊椎动物包括各种各样的物种，从雄伟的哺乳动物到色彩斑斓的鸟类，甚至还有神秘的鱼类，它们栖息在我们的海洋中。理解脊椎动物对于理解地球生命的复杂性至关重要。脊椎动物的分类分为几个主要类别：哺乳动物、鸟类、爬行动物、两栖动物和鱼类。这些群体各自具备独特的特征，使其能够在各自的环境中生存。例如，哺乳动物是温血动物，通常生育活幼，而鸟类则以其羽毛和飞行能力而闻名。另一方面，爬行动物是冷血动物，通常产卵，而两栖动物则拥有双重生活，开始在水中生活，随着成熟转向陆地。鱼类主要在水中生存，通过鳃呼吸，展示了脊椎动物分类中的惊人多样性。脊椎动物的一个最显著的方面是它们的进化历史。据信，第一批脊椎动物出现在5亿多年前的寒武纪时期。这些早期生物是简单的鱼类生物，最终进化成更复杂的形态。脊椎动物的进化导致了显著的适应，使它们能够占据各种生态位。例如，某些鱼类肢体的发展导致了两栖动物的出现，这些动物是第一批冒险上陆的脊椎动物。这一过渡标志着地球生命进化的一个关键时刻。除了它们的进化意义外，脊椎动物在生态系统中也发挥着重要作用。它们通常作为捕食者、猎物和竞争者，有助于维持食物网的平衡。例如，大型哺乳动物如狮子和老虎帮助控制草食动物种群，确保植物生命能够繁荣。鸟类有助于种子的传播，而鱼类通过控制藻类生长并为其他动物提供食物来维护水生生态系统的健康。这些角色的相互联系突显了保护脊椎动物及其栖息地的重要性。不幸的是，许多脊椎动物物种目前正面临由于人类活动造成的威胁。栖息地破坏、污染、气候变化和过度捕捞只是危及它们生存的一些挑战。保护工作对于保护这些物种和维护生物多样性至关重要。世界各地的组织正在不懈努力，建立保护区，促进可持续实践，提高对脊椎动物在我们生态系统中重要性的认识。总之，理解脊椎动物对欣赏我们星球生命的复杂性至关重要。它们多样的形态、进化历史和生态角色展示了自然界内存在的错综复杂的联系。作为地球的管理者，我们有责任保护这些非凡的生物，并确保未来的世代能够体验自然世界的奇观。通过加深对脊椎动物的理解，我们可以激励采取行动，保护和维护我们星球的生物多样性。