雄性生殖

Like all Cestoid's each individual has male and female reproductive structures in its proglottid and can reproduce independently.

像所有的绦虫一样，每一条寄生虫的节片上都有雄性和雌性的生殖结构，能够独立生殖。

Objective: To study the effects of pentabrominated diphenyl ethers on the structure and function of reproductive system in rats and mechanism.

目的：研究五溴联苯醚对大鼠生殖系统结构和功能的影响及其机制方法：在五溴联苯醚对雄性大鼠生殖系统作用的时效关系研究中，选取健康23日龄雄性SD大鼠40只，体重40～60g，随机分为8组，每组5只，分别为染毒5、15、30、45d的实验组和溶剂对照组。

But in fact, the fellatio is humanity's unlearned behaviour, all female animal when oestrus period, the reproductive organ nearby can secrete the Fellow Mongolia to attract the male gender to be close, and lets the male gender contact the female with the mouth reproductive organ, the amusement period of time, only then starts the copulation.

但事实上，口交是人类的本能行为，所有的雌性动物在发情期时，生殖器附近都会分泌费洛蒙来吸引雄性接近，并让雄性用口去接触雌性的生殖器官，玩乐一阵子，才开始交配。

And both of them spentmore time on sniffing nose, sniffing body, sniffing vulvae of social investigatingbehaviors. 2. Comparation of histology of main reproductive organs between the XO femaleindividuals and the XX female individuals: There were no significant differences incolor of pelage between the XO female individuals and the XX female individuals,and their pelage were gray when they were yong, and weak coffee when they are adult.All of the female mandarin voles had three openings: vulvae, urethra, anus.

在遭遇陌生雄性时，XX雌体和XO雌体都运动了较多的时间，同时也花费了较多的时间接近和攻击雄性，还有花费较多的时间并以较多的频次进行嗅鼻、嗅体、嗅外阴等社会探究行为。2、棕色田鼠XO雌体和XX雌体主要生殖器官的组织学比较：从外形看，XO和XX雌体无毛色差异，年龄较小的时为灰色，较大时时呈现出淡咖啡色。

Objective To investigate the effects of MC-dLR on reproductive system of male rats, and to explore the mechanism.

目的 通过观察微囊藻毒素对雄性大鼠生殖系统的影响，以明确MC-dLR的生殖毒性并分析其作用机制。

Each group comprised 20 rats. Three groups ofdosages (12.5, 50.0, 200.0mg.kg respectively) of H98 were administered by injected into gaster for 9 weeks. The same volume of 0.2%sodium carboxymethyl cellulose was administered to the control groups.

生殖毒性实验方法：将25～35g雄性小鼠按体重随机分为4组，每组20只，按12.5、50.0及200.0mg／kg经口给予H98连续9w，对照组给等容积的0.2％羧甲基纤维素钠溶液；比较各剂量组小鼠生育率及生殖器官的检查结果。

In their new work, the researchers established a genetic connection between male sexuality of an oogamous multicellular green algae species, Pleodorina starrii, and one of the mating types of its isogamous ancestor, the unicellular alga Clamydomonas reinhardtii.

在这项最新研究中，研究人员让一种异配生殖多细胞绿藻（Pleodorina starrii藻）与其同配生殖单细胞祖先（Clamydomonas reinhardtii藻）的其中一种配子类型进行雄性配子结合，从而建立两种藻类的遗传学联系。

In experiment 2, taurine and β-alanine (inhibitor of taurine transportation) were offered to male rats of different ages in water, then the effects of taurine on the reproductive organs index, testis tectology and reproductive hormone were investigated.

试验二通过在饮水中添加牛磺酸和β－丙氨酸探讨了牛磺酸对不同年龄雄性大鼠四种生殖器官指数、睾丸组织形态和四种生殖激素的影响。

In this paper, male sterile line of alfalfa was used to be improved with crossing, because the seed production of crossing is low. The affecting factors of seed production of male sterile line of alfalfa and its crossing progenies that are crossed with male sterile lines of alfalfa and good alfalfa that male is fertile were analyzed. The characteristics of female reproductive organs of male sterile line and its crossing progenies are analyzed in cell morphology. The genetic difference of male sterile line and its crossing progenies are analyzed in enzyme protein. The results showed: 1、Rate of podding of nature crossing and fecundity of artificial crossing of the male sterile plant BC1-2 that is the crossing progency of male sterile line of alfalfa and Medicago varia Martin.cv.'Caoyuan No.1'is higher than male sterile lines. Rate of podding of nature crossing and fecundity of artificial crossing of the male sterile plants BC1-19、BC1-21、BC1-22、BC1-23 that are the crossing progencies of male sterile line of alfalfa and Medicago sativa L.cv.

针对苜蓿雄性不育系杂交制种产量低的问题，采用杂交法对苜蓿雄性不育系进行改良，以原苜蓿雄性不育系为轮回亲本与雄性可育优良苜蓿品种杂交，分析苜蓿雄性不育系及其杂交后代种子产量的影响因素，从细胞形态学方面观察和分析杂交后代及原不育系在雌性生殖器官上的变异特点，从酶蛋白水平对杂交后代及原不育系的遗传差异进行分析，初步研究结果如下： 1、苜蓿雄性不育系与草原一号苜蓿的杂交后代不育株BC1-2，以及苜蓿雄性不育系与X′(苜蓿雄性不育系与新疆大叶苜蓿的杂种F1代)的杂交后代不育株BC1-19、BC1-21、BC1-22、BC1-23的天然杂交结荚率和人工杂交制种的结荚率和百粒重均高于原苜蓿雄性不育系。

A colony consists of one reproductive queen and two siring males. This is an example of a eusocial society, where worker individuals put off reproducing for the good of the colony.

一个鼹鼠族群有一个具有生殖能力的皇后和两个配对的雄性裸鼠，这是一个群居社会的典型范例，为了整个族群的利益，每个做工的鼹鼠都延缓生殖。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。