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：

elasmobranch    
n. 软骨鱼,板鳃类

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:


  • Elasmobranchii - Wikipedia
    Elasmobranchii ( ɪˌlæzməˈbræŋkiaɪ [1]) is a subclass of Chondrichthyes or cartilaginous fish, including modern sharks (division Selachii), and batomorphs (division Batomorphi, including rays, skates, and sawfish)
  • Elasmobranchs - Examples, Characteristics, Classification, Pictures
    These fishes are distinguished from chimaeras by five to seven pairs of gill clefts, rigid dorsal fins, and tiny placoid scales on their bodies They lack swim bladders and instead depend on large livers rich in oil for buoyancy
  • What Is An Elasmobranch? | Earth Life
    Elasmobranch skeletons comprise lightweight, flexible cartilage rather than hard bone The cartilage may be calcified for strength but lacks minerals like calcium phosphate found in bone
  • ELASMOBRANCH Definition Meaning - Merriam-Webster
    The meaning of ELASMOBRANCH is any of a subclass (Elasmobranchii) of cartilaginous fishes that have five to seven lateral to ventral gill openings on each side and that comprise the sharks, rays, skates, and extinct related fishes
  • Elasmobranch - an overview | ScienceDirect Topics
    Elasmobranchs are a subclass of cartilaginous fish species (class Chondrichthyes) that include sharks, skates, rays, guitarfish, and sawfish Elasmobranchs diverged from the main line of vertebrate evolution 400 million years ago, and continue to be successful in oceans and seas around the world
  • What Is the Definition of an Elasmobranch? - ThoughtCo
    The term elasmobranch refers to the sharks, rays, and skates, which are cartilaginous fishes These animals have a skeleton made of cartilage, rather than bone These animals are collectively referred to as elasmobranchs because they are in the Class Elasmobranchii
  • Elasmobranch | fish subclass | Britannica
    All cartilaginous fishes—the elasmobranches (e g , sharks, rays, and skates)—employ internal fertilization and usually lay large, heavy-shelled eggs or give birth to live young The most characteristic features of the more primitive bony fishes is the assemblage of polyandrous (many males) breeding aggregations in open water and the absence…
  • Elasmobranch - an overview | ScienceDirect Topics
    The elasmobranch fishes (class Chondrichthyes) are an ancient group, with a fossil record stretching back about 500 million years They are likely to be the earliest vertebrates with clearly differentiated parasympathetic and sympathetic components of the autonomic nervous system (Young, 1958)
  • Elasmobranchs: Defining Features, Diversity, and Adaptations
    Elasmobranchs are an ancient group of cartilaginous fish, including sharks, rays, and skates They have inhabited the world’s oceans for approximately 400 million years, since the Devonian period
  • 5. Elasmobranchs: Classification, and Key Characteristics of . . .
    axon dating back to 400 million years, comprises Elasmobranchii and Holocephali Elasmobranchs inhabit diverse marine environments globally, from shallow c stal waters to deep trenches, with over 869 extant species (around 400 sharks) They occupy habitats from nearshore to abyssal depths, from the equator to the poles, including some fresh





中文字典-英文字典  2005-2009