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- Which of the following best explains why vaccination of humans against rabies can be delayed until after exposure to a potential source of infection? A) Antibody responses are more rapid than those against other viruses B) T lymphocyte responses are more rapid than those against other viruses C) The virus does not infect any cells for several weeks or months D) The virus does not reach i target organ for several weeks or monthsHow might an understanding of the method by which gonorrhea is evolving resistance to certain antibiotics help researchers develop new forms of antibiotics?What does this mean Venom glands are adaptations of I)salivary glands ii) Sweat glands iii) peculiar cell types to inject venom iii) modified ovipositors for venom injection in hymenopterans
- Which is a correct statement concerning the insect circulatory system? Question 18 options: A) Blood transports oxygen and nutrients to all the tissues B) Blood is always contained in a system of tubes called tracheae C) The circulating fluid bathes tissues directly D) There is no heart, or pumpWhich of the following worms deposit their eggs in the perianal folds? a)tapeworms b)liver fluke c)blood fluke d)pinworm e)hookwormHow is the concept of dose-response related to the following statement by Paracelsus: “All substances are poisonous, there are none that are not. The correct dose differentiates a poison from a remedy ”? (Present a graph and use it to build your answer)
- a) What is the unique feature of the leeches? b) What is the function of the organ that you have named in (a)?Why does tetanus result in spastic paralysis in human hosts?Describe the symbiosis between the Riftia tubeworm and its bacterial symbiont. What is the role of the Riftia tube worm hemoglobin in the success of its relationship with the symbiotic bacteria?
- Rabies a)Infects the central nervous system. b)Infects the neuromuscular junction. c)Is caused by a bacterium. d)Is caused by a virus.How can arthropods spread disease in humans?Which of the following is involved in resistance to parasitic helminths? Question 4 options: A) basophils B) eosinophils C) lymphocytes D) monocytes
