protozoan

简明释义

英[ˌprəʊtəˈzəʊən]美[ˌproʊtəˈzoʊən]

n. 原生动物

adj. 原生动物的

复 数 p r o t o z o a n s 或 p r o t o z o a

英英释义

单词用法

同义词

反义词

例句

1.At this concentration, control of protozoan parasites can be achieved.

在此浓度，控制原生动物寄生虫是可以实现的。

2.Protozoan is one of the food organ isms for fish in Rivers.

原生动物是江河鱼类的生物饵料组成之一。

3.The vertical distributions of periphytic protozoan basically accorded with those of periphytic algae.

周丛原生动物的垂直分布基本与周丛藻类的垂直分布相一致。

4.Protozoan parasites of the phylum Apicomplexa include some of the most important causative agents of human and animal diseases, in particular, malaria.

顶复门类的原生动物寄生虫包括造成一些最重要人类和动物疾病的病原体，特别是疟疾。

5.Objective To grasp the pollution situation and dynamic changes of protozoan and viruses in the source water diverted from Luan River.

目的探讨天津引滦水源原虫与病毒污染现状和消长规律。

6.Plasmodium is a protozoan which causes malaria; it is the causative agent of the disease.

疟原虫是引起疟疾的原生动物；是疾病的病原体。

7.However, protozoan grazers feed well on phytoplankton in this size range.

但是，在原食草植物吃浮游植物在这个大小范围。

8.PURPOSE In order to find out the protozoan infection of oral cavity for different groups of persons in Shanghai.

调查上海市区不同人群的口腔原虫的感染情况。从齿垢物取标本作新鲜涂片法检查。

9.Cryptosporidiosis (crypto) and isosporiasis are both caused by protozoan parasites.

隐孢子虫病（crypto）和等孢球虫病都是由原生动物寄生虫引起的。

10.In freshwater ecosystems, protozoan 原生动物 play a crucial role in nutrient cycling.

在淡水生态系统中，原生动物在养分循环中起着至关重要的作用。

11.The presence of protozoan 原生动物 in soil can indicate the health of the ecosystem.

原生动物在土壤中的存在可以指示生态系统的健康状况。

12.Some diseases in humans are caused by parasitic protozoan 原生动物 like Plasmodium.

一些人类疾病是由寄生性原生动物如疟原虫引起的。

13.Researchers are examining the impact of climate change on protozoan 原生动物 populations in marine environments.

研究人员正在检查气候变化对海洋环境中原生动物种群的影响。

14.The study of protozoan 原生动物 behavior can provide insights into the evolution of complex life forms.

对原生动物行为的研究可以为复杂生命形式的进化提供见解。

作文

Protozoans are single-celled organisms that belong to the kingdom Protista. These microscopic creatures are incredibly diverse and can be found in a variety of environments, from freshwater ponds to the depths of the ocean. The study of protozoan 原生动物 life forms is crucial for understanding the complexity of ecosystems and the roles these organisms play within them. One of the fascinating aspects of protozoan 原生动物 biology is their varied modes of locomotion. Some, like amoebae, move by extending their cell membranes to form pseudopodia, which allows them to crawl along surfaces. Others, such as paramecia, use tiny hair-like structures called cilia to propel themselves through water. There are also protozoan 原生动物 species that utilize flagella, long whip-like appendages that allow them to swim efficiently in aquatic environments. This diversity in movement not only showcases the adaptability of protozoan 原生动物, but it also highlights their evolutionary significance.In terms of reproduction, protozoan 原生动物 exhibit remarkable strategies. Many reproduce asexually through processes such as binary fission, where a single cell divides into two identical daughter cells. However, some species can also reproduce sexually, exchanging genetic material to create genetic diversity. This ability to reproduce in different ways allows protozoan 原生动物 to thrive in various conditions and adapt to changing environments.The ecological roles of protozoan 原生动物 are equally important. They serve as a food source for larger organisms, playing a key role in the food chain. In addition to being prey for small fish and other aquatic animals, protozoan 原生动物 also contribute to nutrient cycling in ecosystems. By breaking down organic matter and recycling nutrients, they help maintain the health of their habitats.Furthermore, the study of protozoan 原生动物 has significant implications for human health. Some protozoan 原生动物 are pathogens that can cause diseases in humans and animals. For instance, Plasmodium species, which are responsible for malaria, and Giardia lamblia, which causes giardiasis, are both types of protozoan 原生动物. Understanding the biology and life cycles of these organisms is crucial for developing effective treatments and preventive measures against the diseases they cause.In conclusion, protozoan 原生动物 are an essential component of our planet's biodiversity. Their unique characteristics, ecological roles, and impacts on human health make them a vital subject of study. As we continue to explore the microscopic world of protozoan 原生动物, we gain valuable insights into the interconnectedness of life and the importance of preserving our natural ecosystems.

原生动物是属于原生生物界的单细胞生物。这些微观生物种类繁多，可以在各种环境中找到，从淡水池塘到海洋深处。研究protozoan 原生动物 生命形式对于理解生态系统的复杂性及这些生物在其中所扮演的角色至关重要。protozoan 原生动物 生物学的一个迷人方面是它们多样的运动方式。有些，如变形虫，通过扩展细胞膜形成伪足来移动，使它们能够沿着表面爬行。而另一些，如草履虫，则使用称为纤毛的小毛发状结构在水中推进。还有一些protozoan 原生动物 物种利用鞭毛，这是一种长而鞭状的附肢，使它们能够在水中高效游动。这种运动的多样性不仅展示了protozoan 原生动物 的适应能力，也突显了它们的进化意义。在繁殖方面，protozoan 原生动物 展示了惊人的策略。许多通过二分裂等无性繁殖方式繁殖，其中一个细胞分裂成两个相同的子细胞。然而，一些物种也可以进行有性繁殖，交换遗传物质以创造遗传多样性。这种以不同方式繁殖的能力使得protozoan 原生动物 能够在各种条件下生存并适应变化的环境。protozoan 原生动物 的生态角色同样重要。它们作为更大生物的食物来源，在食物链中扮演关键角色。除了被小鱼和其他水生动物捕食外，protozoan 原生动物 还对生态系统中的养分循环做出贡献。通过分解有机物质和回收养分，它们帮助维持栖息地的健康。此外，对protozoan 原生动物 的研究对人类健康有重要影响。一些protozoan 原生动物 是病原体，可能会导致人类和动物的疾病。例如，引起疟疾的恶性疟原虫（Plasmodium）和引起贾第虫病的贾第虫（Giardia lamblia）都是protozoan 原生动物。了解这些生物的生物学和生命周期对于开发有效的治疗和预防措施至关重要。总之，protozoan 原生动物 是我们星球生物多样性的一个重要组成部分。它们独特的特征、生态角色以及对人类健康的影响使它们成为一个重要的研究主题。随着我们继续探索protozoan 原生动物 的微观世界，我们获得了关于生命相互联系的重要见解，以及保护自然生态系统的重要性。