What blood cell type does vivax infect? What organism is used to make recombinant somatotropin? In which type of acquired immunity does a person produce his/her own antibodies? Which scientist is famous for discovering the polio vaccine? What are the different types of vaccines that are used?
A living organism or virus that invades the body and causes the disease is called ___. Which statement is true of viruses? (a) They all lack DNA (b) They are obligate parasites (c) They have a complex cytoplasm (d) They have a cell w...