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：

gemmule    
n. 小芽,无性芽,芽球

小芽,无性芽,芽球

gemmule
n 1: the physically discrete element that Darwin proposed as
responsible for heredity

Gemmule \Gem"mule\, n. [L. gemmula, dim. of gemma: cf. F.
gemmule. See {Gem}.]
1. (Bot.)
(a) A little leaf bud, as the plumule between the
cotyledons.
(b) One of the buds of mosses.
(c) One of the reproductive spores of alg[ae].
(d) An ovule.
[1913 Webster]

2. (Biol.)
(a) A bud produced in generation by gemmation.
(b) One of the imaginary granules or atoms which,
according to Darwin's hypothesis of pangenesis, are
continually being thrown off from every cell or unit,
and circulate freely throughout the system, and when
supplied with proper nutriment multiply by
self-division and ultimately develop into cells like
those from which they were derived. They are supposed
to be transmitted from the parent to the offspring,
but are often transmitted in a dormant state during
many generations and are then developed. See
{Pangenesis}.
[1913 Webster]


请选择你想看的字典辞典：
单词字典翻译
gemmule查看　gemmule　在百度字典中的解释百度英翻中〔查看〕
gemmule查看　gemmule　在Google字典中的解释Google英翻中〔查看〕
gemmule查看　gemmule　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:


  • Gemmule - Wikipedia
    Gemmules are resistant to desiccation (drying out), freezing, and anoxia (lack of oxygen) and can lie around for long periods of time Gemmules are analogous to a bacterium's endospore and are made up of amoebocytes surrounded by a layer of spicules and can survive conditions that would kill adult sponges When the environment becomes less hostile, the gemmule resumes growing
  • Gemmule - Formation, Structure and Role in Sponge Reproduction
    Definition of Gemmule: A gemmule is an asexually formed clump of cells that can differentiate into an adult freshwater sponge These are tiny, bud-like clusters of cells that sponges generate to survive harsh environmental conditions
  • GEMMULE Definition Meaning - Merriam-Webster
    The meaning of GEMMULE is a small bud a theoretical particle proposed in the theory of pangenesis that is shed by a somatic cell and contains all the information necessary to reproduce that cell type (as in an offspring)
  • Gemmule - BYJUS
    An asexually produced mass of cells, which are capable of developing into a new organism or into an adult freshwater sponge, is termed a Gemmule They are small bud-like cells, which are formed by sponges to withstand unfavourable environmental conditions
  • Formation and Structure of Gemmules and Its Characteristics - Vedantu
    Gemmules - These gemmules are involved in asexual reproduction via Budding Each gemmule is capable enough of being developed into a new organism, an adult sponge in its own Learn more about Formation and Structure of Gemmules and Its Characteristics at Vedantu com
  • Gemmule, Gemmulation: Definition, Meaning, Introduction, Parts . . .
    A gemmule is a resistant, coated cluster of embryonic cells produced by sponges as a means of survival during adverse conditions
  • Gemmule Formation: Structure, Features and Characteristics - Collegedunia
    What is Gemmule? [Click Here for Sample Questions] An asexually formed group of cells that later develops into an adult sponge or organism is called gemmule These are bud like cells which are capable of tolerating extreme temperature environmental conditions These gemmules are hard and coated with a cluster of embryonic cells
  • Gemmule: Definition, Role in Sponge Reproduction and Production Process
    What is a Gemmule? A Gemmule refers to a mass of cells produced asexually These cells possess the ability to grow into a new organism or an adult freshwater sponge They are bud-like cells created by sponges to endure challenging environmental conditions
  • Gemmule - definition of gemmule by The Free Dictionary
    Define gemmule gemmule synonyms, gemmule pronunciation, gemmule translation, English dictionary definition of gemmule n 1 A small gemma or similar structure, especially a reproductive structure in certain sponges that remains dormant for some time and later develops into
  • gemmule - Wiktionary, the free dictionary
    The embryo is composed of cells and spiral vessels; a small stem, or stalklet; a rudimentary descending portion, which becomes the root or radicle; and a rudimentary ascending axis, surrounded by a bud, or gemmule





中文字典-英文字典  2005-2009