原级：parasite
1. 寄生生物：生物个体的大小(size)对其生态学的影响;2,昆虫的特殊结构--气管系统;3,运动方式对生物生态的影响.第四节 寄生关系(Parasitism):1,寄生生物(parasites)与捕食者的区别;2,
2. 寄生蟲：这是本文的题外话,以后将另文讨引起赛鸽呼吸系统疾病的常见病原体(Pathogens)有:依原体(Chlamydia),支原体( Mycoplasma),寄生虫(Parasites),细菌( bacteria),霉菌( fungi),病毒( viruses) 和空气污染微粒
3. 寄生物：对美国的荷兰榆树(Dutch elms)而言,新的入侵者,如真菌,在一开始感染时,非常凶猛;一段时间之后,能持续存在者是演化成毒力(virulence)较弱的寄生物(parasites).
4. 寄生者：利用生物防治杂草在世界许多地方发展成功,如利用寄生者 (parasites) 及病源菌 (disease pathogens). 可以归为下述之方式:以传统的或接种的方式,引入对外来寄主有选择性之外来自然天敌;大量繁殖并释放天敌. 但是这些方法也有其危险性.
1. The news comes as medical authorities nationwide warned about the danger of eating raw or undercooked freshwater seafood to prevent diseases caused by parasites.
2. Some doctors believe the condition is a form of delusional parasitosis, a psychosis in which people believe they are infected with parasites.
3. Rather than serving as a watchdog, they become parasites on industrial accidents to sponge up dirty money.
4. Ticks are parasites that embed their heads in the skin to feed on the blood of mammals.
5. 911查询·英语单词
5. They seized more than 100 kg of live insects at a market on Tuesday, fearing that parasites or bacteria might endanger people's health.
6. They have a much higher risk of being contaminated by bacteria and parasites.
7. Experts say parasites can infect children through interaction with pets, and incubate in the human body for years.
8. The incubation period of the trichinosis disease depends on the number of parasites in the meat and the amount eaten.
9. Perhaps that is what prompted Russian Prime Minister Vladimir Putin to say that Americans live " like parasites off the global economy ".
10. About 40% of the Tibetans were monks and nuns living as parasites on the rest of the population that had to feed them.