由细胞组成的

They are involed of intracellular movements in plant and animal cells.

细胞骨架的大部分主要是由可收缩的蛋白肌动蛋白组成的细长的微丝。

Organism--An individual form of life, such as a plant, an animal, a bacterium, a protist, or a fungus; a body made up of organs, organelles, or other parts that work together to carry on the various processes of life.

有机生物一种个体生命形式，如植物、动物、细菌、原生生物或者真菌；一个由有机器官、细胞器或其它部件组成的并在一起共同运作以进行生命历程的整体3.unpalatable不好吃的，味道不好的

Calcitonin is a hormone, composed of 32 amino acid residues. The main function of CT is to suppress osteoclastic resorption of bones followed by decreases in serum Ca level in mammals.

降钙素是由32个氨基酸残基组成的一种多肽类激素，其主要生理功能是参与体内的钙磷代谢，通过抑制破骨细胞的活性，促进钙在骨中的沉淀，从而降低血钙含量。

They may be unicellular or multicellular, simple, forked, sellate, downy, silky, long, or short.

毛可由单细胞或多细胞组成，有结构单一，叉状，具鞍的，也有柔软的，柔滑的，长形的或短形的。

HTERT is expressed in cancer cell lines despite promoter DNA methylation by preservation of unmethylated DNA and active chromatin around the transcription start site.

人端粒酶逆转录酶是一种核糖核蛋白酶，由端粒RNA和端粒酶蛋白组成的一种特殊逆转录酶，在激活端粒酶的过程中起限速作用，能以自身RNA为模板合成端粒序列以稳定端粒长度使细胞获得永生，也是人类端粒酶的活性中心，其表达是端粒酶活化的必须前题［2～4］。

The construction in vitro with seeded-cells and scaffolds into compounds plays a key role in myocardial tissue engineering.

体外构建由种子细胞和支架材料所组成的复合体是心肌组织工程的核心。

The protective effect of the water extraction of the mixture consisting of poria, radix rehnianniae preparata, fructus corni, medlar and Mai Fan Stone on lead toxic PC12 cells was studied.

研究了由茯苓、熟地黄、山茱萸、枸杞及麦饭石组成的复方的浸提液对PC12细胞铅中毒的防护作用。

Muscular tissue consists of fiber-shaped cells.

肌肉组织由纤维状的细胞组成，有收缩的功能，并负责身体各部分的活动。

AIM To study the direct effect of amiloride on recombinant human protein kinase CK2 holoenzyme and its kinetics. METHODS Recombinant human protein kinase CK2 α and β subunits were cloned,expressed and purified by gene engineering.

蛋白激酶CK2是一种真核细胞内普遍存在的信使非依赖性丝氨酸蛋白激酶，是由两个催化亚基和两个调节亚基组成的异源四聚体(α2 β2 、α′2 β2 或αα′β2 ) [1，2 ] 。

Fulwiler CE, Saper CP. Subnuclear organization of the efferent connections of the parabrachial nucleus in the rat. Brian Res 1984;319:229-259.[2]Herbert H, Moga MM, Saper CB. Connections of the parabrachial nucleus with the nucleus of the solitary tract and the medullary reticular formation in the rat. J Comp Neurol 1990;293:540-580.[3]Slugg RM, Light R.

三叉神经脊束间质核(interstitial nucleus of the spinal trigeminal tract， INV)为位于延髓闩平面附近三叉神经脊束内及其周围的一些核团，由中、小型梭形、圆形或卵圆形细胞组成，经三叉神经的分支和迷走、舌咽神经接受外周内脏和躯体感觉信息[6，7]。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。