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dinucleotide    
二核苷酸; 二双核苷酸

二核□酸; 二双核□酸


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英文字典中文字典相关资料:


  • Hellbender - Wikipedia
    The hellbender (Cryptobranchus alleganiensis), also known as the hellbender salamander, is a species of aquatic giant salamander endemic to the eastern and central United States
  • Hellbender | Smithsonians National Zoo and Conservation Biology Institute
    The eastern hellbender is the largest salamander in the Americas They live in clean, swift-running rivers across the eastern United States and spend their entire lives in the water This near-threatened species is protected in several states
  • Eastern Hellbender - U. S. Fish and Wildlife Service
    Hellbenders are the largest salamander in North America, growing up to two feet long Although they are amphibians, they spend their entire life in water Their flattened bodies enable them to move in fast flowing waters
  • Hellbender - National Wildlife Federation
    Learn facts about the hellbender’s habitat, diet, life history, and more
  • 14 Hellbender Salamander Facts - Fact Animal
    It is the largest salamander found in America and is located in fast moving freshwater rivers and streams Hellbenders are usually found in very clean water that is well oxygenated and that also contains many rocks, logs or other such items to aid in concealment and protection
  • What is a Hellbender - ag. purdue. edu
    What is a hellbender? Hellbenders are the largest salamander in North America They are fully aquatic, residing in rivers throughout the lower Midwest and Appalachia Hellbenders are long-lived for amphibians, typically living for more than 30 years
  • U. S. Giant Salamanders Slipping Away: Inside the Fight to . . . - Education
    But that rarity is what concerns researchers There are two varieties or subspecies of hellbenders—the Ozark hellbender (Cryptobranchusalleganiensis bishop) and the eastern hellbender (Cryptobranchus alleganiensis alleganiensis)—and both have been quietly slipping away since about the 1980s
  • Hellbender Salamander - Facts, Size, Habitat, Diet, Pictures
    The hellbender, also known by the name hellbender salamander or snot otter, is one of the largest salamander species in the world It is a fully aquatic amphibian that constitutes the genus Cryptobranchus and is closely related to other species like the Chinese and Japanese giant salamanders
  • Hellbender - Description, Habitat, Image, Diet, and Interesting Facts
    Few creatures evoke the mystery of pristine waterways quite like the Hellbender Often described as living dinosaurs, these large aquatic salamanders are fascinating indicators of environmental health and possess a unique biology that has captivated zoologists for decades
  • Hellbender salamanders are huge—and in trouble - Popular Science
    Study co-author and biologist Steven Price said that it’s pretty difficult to nab a hellbender even if you aren’t conducting a United States Department of Natural Resources-funded survey





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