英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：


请选择你想看的字典辞典：
单词字典翻译
protozoans查看　protozoans　在百度字典中的解释百度英翻中〔查看〕
protozoans查看　protozoans　在Google字典中的解释Google英翻中〔查看〕
protozoans查看　protozoans　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Protozoa - Wikipedia
    Protozoa (sing : protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris [1][2] Historically, protozoans were regarded as "one-celled animals"
  • Protozoan | Definition, Parasites, Diseases, Characteristics, Size . . .
    Protozoan, organism, usually single-celled and heterotrophic (using organic carbon as a source of energy), belonging to any of the major lineages of protists and, like most protists, typically microscopic All protozoans are eukaryotes and therefore possess a “true,” or membrane-bound, nucleus
  • Protozoa - Definition, Examples, Characteristics, and Classification
    What are protozoa and how are they classified? Learn their characteristics, types, and lifecycle with a diagram and image
  • What are Protozoa? - Microbiology Society
    What are Protozoa? Protozoa are micro-organisms which have a membrane bound nucleus that can't be categorised as a fungi, animal or plant Most protozoa are free living, but some are parasitic They are heterotrophs, meaning that they eat other plants or animals for energy and nutrients They come in many different shapes and sizes ranging from an Amoeba which can change its shape to
  • About Parasites | Parasites | CDC
    A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites
  • Protozoans - GeeksforGeeks
    Protozoans are microscopic, single-celled eukaryotic organisms that belong to the Kingdom Protista They are capable of performing all essential life processes within a single cell despite their simple organisation Protozoans are widely distributed in aquatic and moist environments, where they may live freely or as parasites They play important ecological roles and include several species of
  • Protozoa: Structure, Classification, Growth, and Development
    The Protozoa are considered to be a subkingdom of the kingdom Protista, although in the classical system they were placed in the kingdom Animalia More than 50,000 species have been described, most of which are free-living organisms; protozoa are found in almost every possible habitat The fossil record in the form of shells in sedimentary rocks shows that protozoa were present in the Pre
  • Microbiology - Protozoa, Eukaryotes, Unicellular | Britannica
    Microbiology - Protozoa, Eukaryotes, Unicellular: Protozoa, or protozoans, are single-celled, eukaryotic microorganisms Some protozoa are oval or spherical, others elongated Still others have different shapes at different stages of the life cycle Cells can be as small as 1 μm in diameter and as large as 2,000 μm, or 2 mm (visible without magnification) Like animal cells, protozoa lack
  • Protozoa – Definition, Classification, Characteristics, Structure . . .
    Protozoa Definition Protozoa are a diverse group of single-celled eukaryotic organisms that can be either free-living or parasitic They primarily feed on organic matter, including microorganisms and organic debris Protozoa are characterized by their lack of a rigid cell wall, motility, and heterotrophic feeding habits Examples include Amoeba, Paramecium, Euglena, and Trypanosoma Occurrence
  • What Are Protozoa? Definition, Characteristics, Types Examples
    These categories describe observable characteristics rather than necessarily indicating close evolutionary relationships Amoeboid protozoa Amoeboid organisms move using pseudopodia Their changing shapes are a direct result of how their cytoplasm is organized and how the cell controls its membrane and internal contents Entamoeba includes species of medical importance Entamoeba histolytica





中文字典-英文字典  2005-2009