Existence of a long lasting vaccine in common cold
What is the reason that a long lasting vaccine doesn't exist against common cold yet?
Expert
Viruses that are of a high mutation rate like the virus which causes the common cold escape effortlessly from the action of vaccines against them. After a inital immune reaction(natural or artificially induced) against the virus in the subsequent season of infection new mutant opposing strains appear and the safety obtained with the immune response of the previous season is lost. (One can say that the high mutation rate is a form of “immunization” found by these viruses.)
The netlike membranous complex of superposed flat scales with the vesicles shedding from the extremities seen in the electronic microscopy. What is observed structure? And also illustrate out its biological role?
The topic is about NATURAL RESOURCES - below are all three questions which needs to be answered. lenght 800-900 words. 1. Describe a few ways people in the United States wastes Natural Resources. 2. Assuming this wastefulness in the U.S continues, ev
Illustrate the name the organ which releases the female gamete within formation? How is that release activated? Also write the organ which collects the released gametes?
Define the term circulation? Answer: The Circulation is a movement of substances such as nutrients and gases in blood vessels and cavities all through the organism.<
Write down the three phases in which cell respiration is separated?
State the structures which participate within the human auditory sensitivity?
How swimming strategies are different in the osteichthyes and in chondrichthyes? Why sharks are required to agitate their body to swim whearas bony fishes do not?
Is it likely for a hermaphrodite species to present the cross-fecundation?
Explain what is meant by the substrates of enzymatic reactions?
Features of the good organization structure 1. Simplicity: an organization structure should be basically simple.
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