无性繁殖

Whereas protozoa and bacteria are both living organisms that are able to take in nutrition and reproduce asexually, viruses cannot live or reproduce on their own.

原生动物和细菌均为活的有机体，能够摄取营养并进行无性繁殖，而病毒不能够自行生存或繁殖。

They are hermaphrodites who produce both eggs and sperm but while they are able to reproduce asexually, they do usually mate with other giant snails.

它们是雌雄同体，可以同时产生精子和卵子。不过虽然它们可以无性繁殖，它们仍喜欢在繁殖时有其它的巨蜗牛做伴。

Then barnyard grass sprout, new cell development succeed hypha and breed the fungi The vegetative propagation does not pass the two sexes cell to accord with .

然后稗子萌发，新的细胞发育成菌丝和繁殖真菌。无性繁殖不经过两性细胞结合。

Studies were made on the vegetative propagation coefficient and cormel's biological characters using eighth-excision in different development phase of Lycoris radiate.

在红花石蒜不同生长发育期进行八分法切割繁殖，研究无性繁殖系数和子球生物学性状差异性。

Raising plants from cuttings is one of the most common methods of vegetative propagation.

提高植物扦插繁殖是一种最常见的方法，无性繁殖。

Propagules and buds of Elodea nuttallii and Potamogeton crispus were exposed to acetic acid concentrations from 1 to 16 mmol/L for 3 or 6 days, and then they were subsequently cultured in absence of acetic acid. Results showed P. crispus was more tolerant to acetic acid than E. nuttallii. At acetic acid concentration of 1 mmol/L, E.

研究了暴露于不同浓度的乙酸溶液后伊乐藻和菹草无性繁殖体的萌发和幼芽的生长状况。1mmol/L的乙酸能显著抑制伊乐藻幼芽的生长(P.05)，但对其繁殖体的萌发无明显影响。

Canadian goldenrod is a perennial rhizomatic plant native to North America; it was introduced into China as ornamental plant in 1935, and has become one of the detrimental weeds in Shanghai.

加拿大一枝黄花是菊科多年生草本植物，同时具有无性繁殖和有性繁殖的习性，原产于北美洲。1935年作为观赏花卉引入中国之后逸生为杂草，现已成为上海最为常见的恶性杂草之一，对本地的生物多样性造成了严重的威胁。

Microcycle conidiation has an unique biological importance in the genus Cordyceps besides sexual, asexual multiplication and parasexuality, perhaps it is a necessary stage to infect a host insect.

虫草除具有有性繁殖、无性繁殖和准性循环外，微循环产孢在这类真菌中可能具有独特的生物学意义，它们或许是侵染寄主昆虫必有的生物学阶段。

D in 1996. Since Penna sexual and asexual propagation model was introduced, the widely applied to explain the reality of the phenomenon and explain the deeper meaning behind the phenomenon immediately, and is widely development and application.

自Penna无性繁殖和有性繁殖模型被提出后，立即被广泛应用到解释现实中的现象和阐释现象背后的深层意义中，得到了广泛的发展和应用。

Sexual reproduction is not a universal strategy and so we will examine the advantages and disadvantage of this system versus a***ual reproduction.

有性繁殖是不是一个普遍的策略，所以我们将研究的优点和缺点，这个系统与无性繁殖。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。