age of marine invertibrates

简明释义

海生无脊堆动物时代;

英英释义

例句

1.The fossils we discovered date back to the age of marine invertebrates (海洋无脊椎动物的时代), providing insights into ancient ecosystems.

我们发现的化石可以追溯到海洋无脊椎动物的时代，这为古代生态系统提供了见解。

2.Geologists often refer to the age of marine invertebrates (海洋无脊椎动物的时代) when discussing sedimentary rock formations.

地质学家在讨论沉积岩层时常常提到海洋无脊椎动物的时代。

3.The age of marine invertebrates (海洋无脊椎动物的时代) was marked by the dominance of creatures like trilobites and mollusks.

在海洋无脊椎动物的时代，三叶虫和软体动物等生物占据主导地位。

4.Our museum exhibit features specimens from the age of marine invertebrates (海洋无脊椎动物的时代) to educate visitors about prehistoric life.

我们博物馆的展览展示了来自海洋无脊椎动物的时代的标本，以教育游客了解史前生活。

5.Studying the age of marine invertebrates (海洋无脊椎动物的时代) helps scientists understand evolutionary processes.

研究海洋无脊椎动物的时代有助于科学家理解进化过程。

作文

The history of life on Earth is a fascinating journey that showcases the evolution of various organisms over millions of years. One particularly interesting period in this timeline is the age of marine invertebrates, which refers to a time when marine animals without backbones dominated the oceans. This era, which spanned from the Cambrian period to the end of the Paleozoic era, is crucial for understanding the development of life as we know it today.During the age of marine invertebrates (海洋无脊椎动物的时代), the oceans were teeming with diverse forms of life, including trilobites, mollusks, and echinoderms. The Cambrian explosion, which occurred around 541 million years ago, marked the beginning of this age. During this time, there was a rapid diversification of species, and many of the major groups of marine invertebrates we recognize today began to appear. The fossil record from this period reveals a vibrant underwater world filled with unique organisms that played vital roles in their ecosystems.One of the most significant features of the age of marine invertebrates is the development of complex ecosystems. Marine invertebrates formed the foundation of these ecosystems, providing food and habitat for other marine life. For instance, corals, which are also classified as invertebrates, built extensive reefs that served as crucial habitats for countless species. These reefs not only supported biodiversity but also contributed to the geological structure of the Earth’s crust.As we delve deeper into the age of marine invertebrates, we can observe how these organisms adapted to their environments. Some species developed hard shells for protection, while others evolved unique feeding mechanisms to exploit different food sources. The adaptations seen in this age laid the groundwork for future evolutionary developments in both invertebrates and vertebrates alike.However, the age of marine invertebrates was not without its challenges. Throughout this period, the Earth experienced several mass extinction events, which drastically affected marine life. The most notable of these was the Permian-Triassic extinction event, which occurred around 252 million years ago and is considered the most severe extinction event in Earth’s history. This event wiped out nearly 90% of marine species, including many invertebrates that had thrived for millions of years.Despite these challenges, the age of marine invertebrates remains a pivotal chapter in Earth’s biological history. The resilience of these organisms allowed for a gradual recovery and eventual resurgence of marine life. In the aftermath of the mass extinctions, new species arose, and the oceans began to repopulate with a mix of old and new forms of life.Today, marine invertebrates continue to play an essential role in our oceans. They are critical indicators of environmental health and contribute significantly to marine ecosystems. The study of the age of marine invertebrates not only enhances our understanding of biological evolution but also emphasizes the importance of preserving marine biodiversity for future generations.In conclusion, the age of marine invertebrates (海洋无脊椎动物的时代) is a remarkable period in the history of life on Earth. It highlights the incredible diversity and adaptability of life forms that existed millions of years ago. By studying this era, we gain valuable insights into the evolutionary processes that have shaped our planet and the ongoing importance of marine invertebrates in maintaining healthy ocean ecosystems.

地球生命的历史是一段迷人的旅程，展示了数百万年来各种生物的进化。在这一时间线中，一个特别有趣的时期是海洋无脊椎动物的时代，这个短语指的是一个无脊椎的海洋动物主宰海洋的时期。这个时代从寒武纪时期延续到古生代末期，对于理解我们今天所知生命的发展至关重要。在海洋无脊椎动物的时代（age of marine invertebrates）期间，海洋中充满了多样的生命形式，包括三叶虫、软体动物和棘皮动物。寒武纪大爆发发生在大约5.41亿年前，标志着这个时代的开始。在这段时间内，物种迅速多样化，许多我们今天认识的主要海洋无脊椎动物群体开始出现。来自这一时期的化石记录揭示了一个充满独特生物的生动水下世界，这些生物在其生态系统中扮演了重要角色。海洋无脊椎动物的时代的一个显著特点是复杂生态系统的发展。海洋无脊椎动物构成了这些生态系统的基础，为其他海洋生物提供食物和栖息地。例如，珊瑚也是无脊椎动物的一种，它们建立了广泛的礁石，作为无数物种的重要栖息地。这些珊瑚礁不仅支持生物多样性，还对地球地壳的地质结构做出了贡献。随着我们深入研究海洋无脊椎动物的时代，可以观察到这些生物如何适应其环境。一些物种发展出坚硬的外壳以保护自己，而另一些则进化出独特的捕食机制以利用不同的食物来源。这一时代所见的适应性为未来无脊椎动物和脊椎动物的进化发展奠定了基础。然而，海洋无脊椎动物的时代并非没有挑战。在这一时期，地球经历了几次大规模的灭绝事件，严重影响了海洋生命。其中最著名的是二叠纪-三叠纪灭绝事件，发生在大约2.52亿年前，被认为是地球历史上最严重的灭绝事件。这一事件几乎消灭了90%的海洋物种，包括许多已经繁荣了数百万年的无脊椎动物。尽管面临这些挑战，海洋无脊椎动物的时代仍然是地球生物历史中的一个关键篇章。这些生物的韧性使得它们能够逐渐恢复并最终重新崛起于海洋。在大规模灭绝的余波中，新物种出现，海洋开始重新填满旧有和新生的生命形式。如今，海洋无脊椎动物继续在我们的海洋中发挥重要作用。它们是环境健康的关键指标，并对海洋生态系统做出了重大贡献。研究海洋无脊椎动物的时代不仅增强了我们对生物进化的理解，还强调了保护海洋生物多样性对未来世代的重要性。总之，海洋无脊椎动物的时代（age of marine invertebrates）是地球生命历史中的一个非凡时期。它突显了数百万年前存在的生命形式的惊人多样性和适应性。通过研究这一时代，我们获得了宝贵的见解，了解了塑造我们星球的进化过程，以及海洋无脊椎动物在维持健康海洋生态系统中的持续重要性。