| 1. | The morbidity and mortality of the host species is usually proportional to the number of cocidial cocysts ingested .
宿主的发病率和死亡率与吃进球虫卵囊的数目，通常是成正比的。 |
| 2. | Heteroecious denoting rust fungi that require two host species to complete their life cycle
转主寄生：描述某些锈菌必须存在两个寄主才能完成它的生活周期。 |
| 3. | However , there is not an apprarent connection between the clusters and the natural geographic range of host species
但是，研究供试菌株得到的分群与较细的宿主种类划分和宿主的地理分布并无密切相关。 |
| 4. | Fungi in special circumstances become " parasites " by attacking living tissue of the host species , causing the death of these individuals
真菌在特殊的环境下成为“寄生物， ”侵染寄主种的活组织，引起这些个体的死亡。 |
| 5. | Interferon is almost always host species - specific in function . by contrast , interferon activity is not specific for a given virus ; the replication of a wide variety of virus can be inhibited
干扰素在功能上通常是宿主种特异性。相反，干扰素活性对各种病毒均有效；能广泛抑制各种病毒的复制。 |
| 6. | While a true virus replicates itself within a host species with variable impacts , a computer virus is " a specific type of malicious computer code that replicates itself or inserts copies or new versions of itself in other programs when executed within the infected program
真正的病毒在主体内不断自我复制，产生多种不同的影响；电脑病毒则是一种恶意的电脑码，能在受传染的程式中自我复制，并将复制的病毒或新变种在执行其他程式时传到该程式。 |
| 7. | The samples of cactus which is the host of cochineal insects in 10 counties of yunnan and guizhou province are collected and the cochineal female adults are cultivated on them to test the influence of host species to the development of the cochineal . the samples of different cactus are dissected and the anatomical st ructure are compared as well as the nutritional compositions are analyzed to study the relation between the cochineal and its hosts
采集云南省和贵州省共10个县(市)的胭脂虫寄主仙人掌的不同种和种源，通过放养胭脂虫比较出不同种的仙人掌和地理种源对胭脂虫生长发育的影响，并对仙人掌进行解剖及营养成分分析，比较仙人掌解剖结构及营养成分的差异，初步探索胭脂虫与仙人掌寄主之间的关系。 |
