Which of the following secrete antibodies?
What will be an ideal response?
plasma cells
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Why would individuals with HIV sometimes contract a pneumonia infection that's rare in the rest of the population?
A) They lack helper T cells. B) They produce too many antibodies to the virus. C) They possess more antigen diversity. D) They lack B lymphocytes.
A person who inherits an extra X chromosome will have
A. Klinefelter syndrome. B. Turner syndrome. C. Down syndrome. D. Polyploid syndrome. E. Edward syndrome.
An example of a ?-hemolytic gram-positive organism is:
a. Staphylococcus aureus. b. S. pneumoniae. c. Escherichia coli. d. Enterococcus.
Biological evolution occurs in ____ when specific processes cause genomes of organisms to differ from those of their
ancestors
a. individuals b. populations c. communities d. phenotypes e. genotypes