There are 3 different kinds of STIs/STDs:bacterial,viral, and parasitic. Parasitic STIs/STDs are caused by parasites passed from person-to-person and depending on the STI/STD, can be transmitted during sexual activity; during non-sexual contact with another individual; from mother to infant du...
But sometimes two kinds of animals come together in a partnership(伙伴关系) which is good for them. You may have noticed some birds on the backs of sheep. This is not because they want a ride, but because they find easy food in the parasites(寄生虫) on sheep. The sheep let the ...
But sometimes two kinds of animals come together in a partnership (伙伴关系) which is good for them. You may have noticed some birds on the backs of sheep. This is not because they want a ride, but because they find easy food in the parasites (寄 生虫) on sheep. The sheep let ...
As public swimming pools can be contaminated with different types of parasites and also fungi, observing personal and environmental hygiene, and following standards for remaining free chlorine in water can help reduce the fungal contamination... S Saberianpour,H Momtaz,F Ghanbari,... - 《Journal ...
1. Good.2. Yes.3. Because they can eat its parasites.4. They play the role of cleaners.5. They take the useless things from corals and give oxygen in return.3. 4和5小题答案不唯一
答案即在“This is not because they want a ride, but because they find easy food in the parasites (寄生虫) on sheep.”一句之中。可知鸟喜欢坐在羊的身上，是想吃羊身上的寄生虫，选A小题2:猜词题：前文中的“The sheep let the birds do so because they can stop the parasites ...
But sometimes two kinds of animals come__ together in a partnership (伙伴关系) which is good for them. You may have noticed some birds on the__backs of sheep. This is not because they want a ride, but because they find easy food in the parasites(寄生虫) on sheep. The sheep let ...
Organization says mosquitoes carry organisms that cause disease and death for millions of people throughout the world. "可知世界卫生组织称蚊子携带的生物体可以引发疾病,并导致世界上数百万人死亡,故选B.41.C细节理解题.根据文中第六段"T hey aredesigned to prevent the parasites from developing in the...
and even viruses and parasites. These microorganisms are involved in the production of neurotransmitters that carry signals from neuron to neuron. Every component of the digestive tract is closely bound to the brain, which is why people not only have gut instincts, but also feel nauseous when dis...
Sometimes, however, two kinds of animals come together in a partnership(伙伴关系) which does good to both of them. You may have noticed some birds sitting on the back of sheep. This is not because they want a ride, but because they find easy food in the parasites(寄生虫)on sheep...