查询词典 reproduction

Pollen is the male_gamete of seed plant, which plays an important role in sexual reproduction.

花粉是种子植物的雄配子体，在有性繁殖中发挥着重要作用。

Relating to a type of sexual reproduction in which the gametes are dissimilar in some respect.

与不同类型配偶的性繁殖相关的。

In some organisms, sexual reproduction has been shown to enhance the spread of parasitic genetic elements e.g.

在一些生物中，已证明有性繁殖提高了寄生性基因元件的传播。

Most of the endangered plant has the difficulty in sexual reproduction.

大多数的濒危植物都存在有性生殖障碍，通过对珙桐的大小孢子及雌雄配子体形成的研究，发现在这一过程没有异常。

Such reassortment of genes is the main source of genetic variation during sexual reproduction.

交换是有性繁殖中遗传变异的主要来源之一。

Sexual reproduction of animals was wildly distributed in nature and also was the main reproductive way.

动物的有性繁殖是自然界普遍的遗传现象，是繁殖后代的主要方式，作为重要经济昆虫的家蚕也是如此。

Question is when sexual reproduction itself evolved.

何时产生的，另一个问题是如何产生的。

The potential of sexual reproduction in the three species was still very great.

可见三种橐吾有性生殖的潜力依然很大。

The ascospores, on the other hand, are produced by following sexual reproduction.

另一方面，子囊孢子是在有性生殖之后产生的。

Age and sexual structures are given to the individuals according to the sexual reproduction popular in nature.

它最早由美国密执安大学的Holland教授提出，起源于6 0年代对自然和人工自适应系统的研究。

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％。