antigen and antibodies
Microtubules have two main functions in cells and in doing so act like a skeleton as well as like railroad tracks. Microtubules are the main structural component of the cytoskeleton in cells which provides the cell with structure and rigidity and determines the shape of the cell. They also serve to directionally transport vesicles and proteins within the cytoplasm through transport proteins called kinesins and dyneins, which act much like railroad cars. yes indeed
Active immunity is immunity which is developed in response to having had an illness. Passive immunity is immunity which is developed as a result of a vaccine. Most vaccines use dead organisms, so the risk to the person is less than if they had contracted the actual disease.
He was intrested in smallpox
No because an antibody is produced for that specific pathogen. An antibody produced against influenza will not lock onto a common cold virus because the binding site on the virus is different compared to that of an antibody.