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:

Eutheria    


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:


  • Eutheria - Wikipedia
    Eutheria (from Ancient Greek εὐ- (eú-), meaning "true, well", and θηρίον (thēríon), meaning "beast", and thus, "true beasts"), also called Pan-Placentalia, is the clade consisting of placental mammals and all therian mammals that are more closely related to placentals than to marsupials
  • Placental mammal | Characteristics Facts | Britannica
    placental mammal, (infraclass Eutheria), any member of the mammalian group characterized by the presence of a placenta, a vascular organ that develops during gestation, which facilitates exchange of nutrients and wastes between the blood of the mother and that of the fetus
  • Eutheria, the Placental Mammals - University of California Museum of . . .
    Placental mammals are a rather diverse group, with nearly 4000 described species, mostly rodents and bats (photos at left) The placental mammals include such diverse forms as whales, elephants, shrews, and armadillos
  • Eutheria - New World Encyclopedia
    In some taxonomic classification schemes, Eutheria is the term used for one of the three major branches or clades of mammals that includes extant members, the other two groups being the marsupials and the monotremes
  • What Are Eutherian Mammals and Why Are They So Diverse?
    Eutherian mammals represent the vast majority of living mammalian species, encompassing a remarkable range of forms found across the globe This diverse group includes familiar animals like humans, dogs, whales, and elephants, showcasing an incredible array of adaptations
  • Understanding Eutheria: Insights into Placental Mammals
    Eutheria, often called placental mammals, is an infraclass that includes species such as humans, elephants, and whales This group differs from other mammals, such as marsupials and monotremes, primarily in its reproductive structures
  • EUTHERIA Definition Meaning | Merriam-Webster Medical
    The meaning of EUTHERIA is a major division of mammals characterized by the attachment of the developing fetus to the maternal uterus by a placenta and including all mammals living at the present time except the marsupials
  • Eutheria (Placental Advanced article Mammals) - ResearchGate
    Advanced article Alexander O Averianov, Zoological Institute, Saint Petersburg, Russia Based in part on the previous versions of this eLS article ‘Eutheria (Placental Mammals)’ (2001, 2005, 2012)
  • Placental Mammals - Classification Characteristics
    Placental mammals, also known as Eutheria, are the most diverse and widespread group of mammals on Earth The defining feature of placental mammals is the presence of a placenta, a specialized organ that forms during pregnancy within the mother's uterus
  • Eutheria - Simple English Wikipedia, the free encyclopedia
    Eutheria Eutheria is the taxonomical name for the main group of living mammals [2] This taxon contains the placental mammals, of which humans are one species Eutheria was introduced by Thomas Henry Huxley in 1880 Members of Eutheria are now found on all continents and in all oceans





中文字典-英文字典  2005-2009