Classify the following characteristics to describe the similarities and differences between T cells and B cells. Some answer choices may be used more than once.
1) Both T cells and B cells are types of white blood cells.
2) T cells are involved in cell-mediated immunity, while B cells are involved in humoral immunity.
3) T cells mature in the thymus gland, while B cells mature in the bone marrow.
4) T cells recognize antigens presented by major histocompatibility complex (MHC) molecules, while B cells recognize antigens directly.
5) T cells are responsible for cell killing, while B cells are responsible for antibody production.