交配

To sum up, there is large degree of prezygotic isolations among the three species of Millepora.

总言之，三种火珊瑚有相当程度的交配前生殖隔离。

This research, on the reproduction of three species of Millepora at Hengchun Peninsula, was conducted between February, 1994 and July, 1995. In order to understand possible prezygotic isolation between them, I investigated reproductive periods, reproductive characters as well as the roles and functions of medusae in the life history of Millepora.

本研究自1994年2月到1995年7月期间，针对恒春半岛的三种火珊瑚(型态为板状、枝状、叉状)，比较彼此生殖季及相关生殖形质，以了解三种火珊瑚是否达到交配前的生殖隔离；并了解水母体在火珊瑚生活史中可能扮演的角色与功能。

Betzig thought,"I told you so." Betzig points out that while powerful men throughout Western history have married monogamously, they have always mated polygynously (they had lovers, concubines, and female slaves).

Betzig 称&我对你们说过了& Betzig指出，虽然在西方的历史里有权利的男性都是遵照一夫一妻制（一次只拥有一个法定妻子），当他们往往会和&一夫多妻&一样交配（他们有情人、小妾、女性奴隶）。

Firstly, an invasive species must be invasive enough in itself or has some biological distinction, such as quantitative and qualitative differences in the genome, or patterns of recombination. Secondly, to invade successfully, a new environment for an invasive species must be invasible, and this we may call the ecological basis of invasion. An invasive species may need to establish new interactions with other species, especially those mutualistic relations such as animal related pollination, seed dispersal by animals, mycorrhizal fungi, and symbioses between plants and nitrogen fixing bacteria.

首先从其自身来说，需要有足够的入侵性，这可以认为是入侵种的生物学基础，可能表现为具有多倍性、一定的遗传变异、杂合性或表型可塑性，以及不同的交配系统等；其次一个物种的入侵成功还取决于入侵生境的可入侵性，这可以认为是入侵种的生态学基础，而新的种间关系的形成，尤其是入侵种与其他种类的互惠共生关系的建成是关键。

As for the Nepionic Rats at the body growth characteristic of different days ages,the method of observing the distance and the relative distance of the anus and the vulvas when they were three to four days old was used to discriminate the sex.When they are five to eight days old,the method of observing the papillas was added to discriminate the sex.

将同期交配的孕鼠分为4组，针对乳鼠在不同日龄的身体发育特点，在3～4日龄采用观察其肛门与外阴距离和相对距离的方法、对5～8日龄再附加对乳头观察的方法进行性别鉴别对比实验。

Methods The pregnant rats mating in the corresponding period were divided into four groups.As for the Nepionic Rats at the body growth characteristic of different days ages,the method of observing the distance and the relative distance of the anus and the vulvas when they were three to four days old was used to discriminate the sex.When they are five to eight days old,the method of observing the papillas was added to discriminate the sex.

将同期交配的孕鼠分为4组，针对乳鼠在不同日龄的身体发育特点，在3～4日龄采用观察其肛门与外阴距离和相对距离的方法、对5～8日龄再附加对乳头观察的方法进行性别鉴别对比实验。

Formation of mating pairs, nicking of the F oriT sequence, and transfer of the 5' end of a single strand of F DNA proceed as in transfer of the F plasmid. Therefore, Part of the plasmid is transferred first, Chromosomal genes are transferred next, and the rest of the plasmid is transferred last.

雌雄菌的交配、F质粒oriT处缺口的形成、以及由单链F DNA5'末端开始转移的过程都与F质粒的转移相同，因此，首先转移的是部分质粒片段，其次是染色体基因，剩余的质粒片段最后被转移。

First we investigated the relationship between the female pleonal expansion and female reproductive condition (i.e., non-ovigerous, ovigerous, or with spermatophores) to clarify the morphological characteristics of female coconut crabs that were able to mate.

首先，我们调查了雌蟹腹变宽和生殖条件的关系（非抱卵蟹、抱卵蟹、或者纳精囊中出现精荚）来确认椰子蟹具有交配能力的雌蟹形态特征。

Results: WildAnopheles sinensis in Zhengzhou could develop, survival, suck blood, mate, fertilize and oviposit smoothly in laboratory.

结果：郑州野外的中华按蚊在实验室内交配、受精、吸血、产卵、各期发育、存活均已顺利进行，累代养殖获得成功。

The researches on the A2 mating type of Phytophthora infestans have made a great progress recently.

近年来，关于马铃薯晚疫病菌A2交配型的研究有很大进展。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。