因此，自然选择让这种寄主-寄生关系变得稳定。
Thus, natural selection stabilized this host-parasite relationship.
自然选择偏爱那些最容易找到寄主并以之为食的寄生虫。
Natural selection favors the parasites that are best able to find and feed on hosts.
通常情况下，有可能得出包裹体比其金刚石寄主更古老的结论，但几乎没有说明所涉及的时间间隔。
Usually, it is possible to conclude that the inclusions are older than their diamond hosts, but with little indication of the time interval involved.
汉密尔顿指出，黄蜂卵在寄主即另一种昆虫的幼虫内发育，新出现的成年黄蜂立即交配并四散，这提供了一个非常有说服力的分析。
Hamilton, noting that the eggs develop within their host—the larva of another insect—and that the newly emerged adult wasps mate immediately and disperse, offered a remarkably cogent analysis.
寄生物种可能和寄主不同步。
它的卷须缠绕在寄主植物的茎上。
例如，许多锈菌在转主寄主上越冬。
上述捕虏体均与寄主玄武岩无成因关系。
No original relation was found between the xenoliths and the host basalt.
综述了昆虫寄主标记信息素的研究进展。
This paper reviews recent progress in the research of insect host marking pheromones.
某些粘孢子虫在其生活史中有中间寄主。
Some of the Myxosporidia have middle hosts in their life cycles.
菟丝子属植物的寄主广泛。
信息化合物对天敌选择寄主行为的影响。
The influences of semiochemicals on host selection behavior of natural enemies.
火烧直接影响森林昆虫的寄主和生存条件。
Fire can affect the host and life condition of forest pests directly.
温度与寄主植物是影响其发生的主要因素。
Temperature and host plant were the main occurrence factors.
在一定距离以外，蚜虫通常不能或难以识别其寄主植物。
In general an aphid cannot or hardly identify its host at a distance.
尚有34种寄主未确定的害虫，还需进一步观察和研究。
There are still 34 species of host undetermined pests needing further observation and study.
因为除人类以外，弓形虫还有两个常规寄主：啮齿目动物与猫科动物。
For, besides humans, Toxoplasma has two normal hosts: rodents and cats.
这表明干旱胁迫在光肩星天牛选择寄主植物方面起着重要作用。
Thus, drought stress appears to play an important role in the host selection behavior of ALB.
检查蜱虫并迅速去除寄主可能是最重要和最有效的预防感染的方法！
Checking for ticks and prompt removal of attached ticks is probably the most important and effective method of preventing infection!
如果野鸟是这类寄主，它们将很有可能在随后的迁移行动中携带病毒。
If they are such a reservoir, there is a strong likelihood they will carry the virus with them in subsequent migrations.
昆虫寄主标记信息素也调节昆虫近缘种之间对共同寄主资源的竞争。
Host marking pheromones may also play a role in mediating the competition for host resources Shared by closely-related species.
Ia型超新星如此之亮，以至于在几个星期内它的寄主星系的光芒也相形见绌。
Type Ia supernovae are so luminous that they outshine their host galaxies for several weeks.
每一种情况中，感染生物都用寄主的身体来生存和生长，经常集中于一个特定器官。
In each case, the infecting organism USES the host body to live and grow, and is often restricted to a particular organ.
有些寄生虫和病原体直接以寄主的组织为食，或者劫持寄主的分子机构进行繁殖。
Some feed on the host's tissue directly, or hijack its molecular machinery to reproduce.
有些寄生虫和病原体直接以寄主的组织为食，或者劫持寄主的分子机构进行繁殖。
Some feed on the host's tissue directly, or hijack its molecular machinery to reproduce.
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