metazoan

简明释义

英[ˌmetəˈzəʊən]美[ˌmetəˈzoən]

adj. 后生动物的；多细胞动物的

n. 后生动物；多细胞动物

英英释义

单词用法

同义词

反义词

例句

1.Several Metazoan ! I would like to ask the mountain toward the river side is what?

几位后生！请问那座山向著大河的一面是个什麽样子？

2.There are lots of bacteria, protozoan and metazoan species immobilized on the carrier surface in G-BAF, which can enhance the removal effect of nitrogen, phosphorus and refractory organic compounds.

G -BAF的载体表面附着有大量的细菌以及多种形态的原、后生动物，增强了对氮、磷及难降解有机物的去除能力。

3.Eosinophils, while having a role as phagocytes, also have more specific functions that include providing a defense against metazoan parasites and modulating the inflammatory process.

嗜酸性粒细胞具有吞噬细胞的作用，也有更多的具体功能：包括对抗寄生虫和调节炎症过程。

4.Factors determine the lifespan of metazoan animals.

因素决定的寿命后生动物。

5.It was observed by optical microscope that bacteria, filamentous microorganism, protozoan and metazoan were adhered on the surface of the sludge.

光学显微镜观察，污泥表面附着有各种球菌、杆菌、丝状菌以及原、后生动物。

6.As the scientists conclude: "Our results expand the known metazoan bio-sphere and demonstrate that deep ecosystems are more complex than previously accepted."

科学家总结道：“我们的研究结果扩展了已知的后生生物圈的范围，并揭示出，深层生态系统比我们之前想象的要复杂。”

7.Soil nematodes are the most abundant metazoan, which have various types of life-history and feeding habits, and play a key role in soil food web.

线虫作为土壤中数量最丰富的后生动物，其生活史和取食类型多样，在生态系统中发挥着重要作用。

8.Autophagy is commonly observed in metazoan organisms during programmed cell death (PCD), but its function in dying cells has been unclear.

在后生动物有机体的细胞程序性死亡(PCD)中可以普遍观察到自噬现象。但它在垂死细胞的功能作用还不清楚。

9.The metazoan zooplankton species were mainly composed of eurythermal ones and only a few thermophil ones were also found.

星湖的后生浮游动物基本上为广温种类，兼具一些嗜暖种。

10.The study of metazoan 多细胞生物 evolution provides insights into the complexity of life forms.

对metazoan 多细胞生物 进化的研究提供了对生命形式复杂性的见解。

11.In marine biology, many researchers focus on the behavior of metazoan 多细胞生物 species in their natural habitats.

在海洋生物学中，许多研究者专注于观察metazoan 多细胞生物 物种在其自然栖息地中的行为。

12.Many metazoan 多细胞生物 exhibit complex behaviors that are essential for survival.

许多metazoan 多细胞生物 展示出对生存至关重要的复杂行为。

13.Researchers discovered a new species of metazoan 多细胞生物 in the deep ocean.

研究人员在深海发现了一种新的metazoan 多细胞生物 物种。

14.The classification of metazoan 多细胞生物 organisms helps scientists understand evolutionary relationships.

对metazoan 多细胞生物 生物的分类有助于科学家理解进化关系。

作文

The term metazoan refers to a large group of multicellular organisms that are characterized by their complex structures and various forms of organization. These organisms, which include animals from the simplest sponges to the most complex mammals, share several key features that distinguish them from other life forms such as unicellular organisms and plants. Understanding the concept of metazoan is crucial for studying biological diversity and the evolutionary processes that have shaped life on Earth.Metazoans are primarily defined by their multicellular organization, which allows for specialization of cells and tissues. This specialization enables metazoans to perform a wide range of functions more efficiently than unicellular organisms. For example, in a metazoan like a human, different types of cells work together to form tissues, which in turn make up organs. Each organ has a specific role, contributing to the overall functioning of the organism. This level of complexity is a hallmark of metazoan life.Another important aspect of metazoan biology is their developmental processes. Most metazoans undergo a series of developmental stages, starting from a single fertilized egg cell. During this process, cells divide and differentiate into various types, leading to the formation of tissues and organs. This developmental pathway is tightly regulated by genetic and environmental factors, making it a fascinating area of study in developmental biology.In addition to their structural complexity, metazoans also exhibit a wide variety of behaviors and interactions with their environments. From the simple feeding mechanisms of sponges to the sophisticated hunting strategies of predatory mammals, metazoans have evolved a range of adaptations that enable them to survive and thrive in diverse habitats. This behavioral diversity is another reason why the study of metazoan organisms is so important in understanding ecological relationships and evolutionary dynamics.Moreover, metazoans play significant roles in ecosystems. They can be found in nearly every habitat on Earth, from the deepest oceans to the highest mountains. As consumers, they are integral to food webs, influencing population dynamics and energy flow within ecosystems. Additionally, many metazoans serve as pollinators, decomposers, or prey for other species, further highlighting their importance in maintaining ecological balance.The evolutionary history of metazoan organisms is also a fascinating topic. Metazoans are believed to have originated over 600 million years ago during the Ediacaran period. The emergence of metazoans marked a significant transition in the history of life, leading to the Cambrian explosion—a rapid diversification of life forms. Studying the fossil record and genetic data helps scientists understand how metazoans have evolved and adapted over time, shedding light on the origins of complex life.In conclusion, the concept of metazoan encompasses a diverse and complex array of multicellular organisms that are fundamental to life on Earth. Their unique structural and functional characteristics, developmental processes, ecological roles, and evolutionary history make them a central focus of biological research. By studying metazoans, we gain valuable insights into the intricacies of life, the interconnections within ecosystems, and the evolutionary forces that have shaped the natural world. Understanding metazoan organisms not only enriches our knowledge of biology but also emphasizes the importance of biodiversity and conservation efforts in preserving the intricate web of life on our planet.

术语metazoan指的是一大类多细胞生物，其特征是复杂的结构和各种形式的组织。这些生物包括从最简单的海绵到最复杂的哺乳动物的动物，分享几个关键特征，使它们与其他生命形式（如单细胞生物和植物）区分开来。理解metazoan的概念对于研究生物多样性和塑造地球生命的进化过程至关重要。多细胞生物主要由其多细胞结构定义，这使得细胞和组织的专业化成为可能。这种专业化使得多细胞生物能够比单细胞生物更有效地执行广泛的功能。例如，在像人类这样的metazoan中，不同类型的细胞协同工作形成组织，而这些组织又组成器官。每个器官都有特定的角色，促进整个生物体的正常功能。这种复杂程度是metazoan生命的标志。metazoan生物学的另一个重要方面是它们的发育过程。大多数多细胞生物经历一系列发育阶段，从一个受精卵开始。在这个过程中，细胞分裂并分化为各种类型，导致组织和器官的形成。这个发育路径受到遗传和环境因素的严格调控，使其成为发育生物学中一个引人入胜的研究领域。除了结构复杂性外，多细胞生物还表现出与环境的多种行为和互动。从海绵简单的摄食机制到捕食性哺乳动物复杂的捕猎策略，多细胞生物已经进化出一系列适应能力，使它们能够在不同栖息地中生存和繁衍。这种行为多样性是研究metazoan生物学的重要原因之一，帮助我们理解生态关系和进化动态。此外，多细胞生物在生态系统中也扮演着重要角色。它们几乎可以在地球上的每个栖息地中找到，从最深的海洋到最高的山脉。作为消费者，它们是食物链中不可或缺的一部分，影响种群动态和生态系统中的能量流动。此外，许多多细胞生物充当授粉者、分解者或其他物种的猎物，进一步强调了它们在维持生态平衡中的重要性。metazoan生物的进化历史也是一个迷人的话题。据信，多细胞生物起源于6亿多年前的埃迪卡拉纪。多细胞生物的出现标志着生命历史中的一个重大转变，导致了寒武纪的大爆发——生命形式的快速多样化。通过研究化石记录和基因数据，科学家们可以了解多细胞生物如何随着时间的推移进化和适应，揭示复杂生命的起源。总之，metazoan的概念涵盖了一系列多细胞生物，这些生物对地球上的生命至关重要。它们独特的结构和功能特征、发育过程、生态角色以及进化历史使它们成为生物研究的核心。通过研究多细胞生物，我们获得了对生命复杂性的宝贵见解，理解生态系统内的相互联系，以及塑造自然世界的进化力量。理解metazoan生物不仅丰富了我们对生物学的知识，还强调了生物多样性和保护努力在维护我们星球上生命复杂网络中的重要性。