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：

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:


  • Nekton - Wikipedia
    Nekton or necton (from the Ancient Greek: νηκτόν, romanized: nekton, lit 'to swim') is any aquatic organism that can actively and persistently propel itself through a water column (i e swim) without touching the bottom
  • Nekton | Marine Life, Aquatic Organisms, Plankton | Britannica
    nekton, the assemblage of pelagic animals that swim freely, independent of water motion or wind Only three phyla are represented by adult forms
  • Nekton – Types, Examples, and Diagram - Science Facts
    Nektons are marine organisms that can swim and move independently of moving water Apart from some mollusks and crustaceans, most nektons are vertebrates Some examples of nektonic organisms are whales, fish, reptiles, and birds They live at all depths of the ocean Most live closer to the surface due to the presence of food
  • Nekton | Encyclopedia. com
    Nekton are aquatic animals that swim or move freely in the water Their movement is generally not controlled by waves and currents Nekton include fish, squid, marine mammals, and marine reptiles They live in the sea, lakes, rivers, ponds, and other bodies of water
  • Home - Nekton
    Nekton advances our knowledge of the ocean through expeditions, applied research, storytelling, and knowledge exchange Our programmes are co-created with the Nekton Network—an alliance of scientists, governments, businesses, philanthropy, and civil society partners
  • Nekton - an overview | ScienceDirect Topics
    Nekton (or swimmers) are living organisms that are able to swim and move independently of currents Nekton are heterotrophic and have a large size range, with familiar examples such as fish, squid, octopus, sharks, and marine mammals
  • Nekton | Definition, Types Examples - Lesson | Study. com
    Learn the definition of nekton and nektonic organisms and discover their features See some nekton examples and discover how they differ from plankton
  • Nekton - NatureWorks - New Hampshire PBS
    Animals that swim or move freely in the ocean are nekton Nekton come in all shapes and sizes They live in shallow and deep ocean waters Most nekton eat zooplankton, other nektons or they scavenge for waste There are three types of nekton The largest group of nekton are chordates and have bones or cartilage
  • Salt Marsh Nekton - U. S. National Park Service
    Nekton are free-swimming fishes and crustaceans that are vital signs of salt marsh health, along with tidal wetland elevation and vegetation Abundant and integral to the ecosystem food web, nekton tell us about primary producers, consumers, top predators, and estuarine change





中文字典-英文字典  2005-2009