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
Spermathecae查看　Spermathecae　在百度字典中的解释百度英翻中〔查看〕
Spermathecae查看　Spermathecae　在Google字典中的解释Google英翻中〔查看〕
Spermathecae查看　Spermathecae　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:


  • Spermatheca - Wikipedia
    Its purpose is to receive and store sperm from the male or, in the case of hermaphrodites, the male component of the body Spermathecae can sometimes be the site of fertilisation when the oocytes are sufficiently developed [3] Some species of animal have multiple spermathecae
  • Spermatheca - an overview | ScienceDirect Topics
    The spermathecae vary considerably in their overall structure from insect to insect, but as outgrowths of the median oviduct, they are all ectodermal in origin and produce a cuticular lining
  • SPERMATHECA Definition Meaning - Merriam-Webster
    The meaning of SPERMATHECA is a sac for sperm storage in the female reproductive tract of some animals (such as mollusks and frogs) and especially insects
  • Spermatheca - an overview | ScienceDirect Topics
    Spermatheca is defined as a specialized structure in female reproductive systems that stores sperm, allowing for the prolonged viability and potential fertilization of eggs at a later time
  • Spermatheca | anatomy | Britannica
    …a structure known as the spermatheca, which allows them to control the fertilization of their eggs Thus queens can lay eggs that are either unfertilized or fertilized Unfertilized eggs develop into drones, whereas fertilized eggs develop into females, which may be either workers or virgin queens Eggs destined to become…
  • Insect reproductive system - Wikipedia
    The sperm is stored within the female in one or more spermathecae At the time of fertilization, the eggs travel along oviducts to be fertilized by the sperm and are then expelled from the body ("laid"), in most cases via an ovipositor
  • Spermatheca Explained
    Its purpose is to receive and store sperm from the male or, in the case of hermaphrodites, the male component of the body Spermathecae can sometimes be the site of fertilisation when the oocytes are sufficiently developed [3] Some species of animal have multiple spermathecae
  • Investigation of the spermathecal morphology, reproductive strategy and . . .
    In insects, females can keep sperm capable of fertilisation over a long period with the help of the spermatheca The effectiveness of storing fertile sperm is expected to reflect in the reproductive strategy and, thus, the morphology of the involved organs
  • Where Do Female Insects Store Sperm - blog. entomologist. net
    Female insects generally store sperm received during mating in specific organs of their reproductive tract, i e , the spermathecae The remaining sperm is stored in two or rarely three spermathecae, which consist of chitinized capsules that connect to the uterus via a tubular structure





中文字典-英文字典  2005-2009