Differentiate between $B-$lymphocytes and $T-$lymphocytes.

(N/A) $B-$lymphocytes and $T-$lymphocytes are the two main types of lymphocytes involved in the adaptive immune system.
$1$. Origin and Maturation: Both originate from stem cells in the bone marrow. $B-$lymphocytes mature in the bone marrow,whereas $T-$lymphocytes migrate to the thymus gland to mature.
$2$. Function: $B-$lymphocytes are responsible for humoral immunity by producing antibodies. $T-$lymphocytes are responsible for cell-mediated immunity by directly attacking infected cells or activating other immune cells.
$3$. Response: $B-$lymphocytes recognize antigens directly,while $T-$lymphocytes recognize antigens only when presented by antigen-presenting cells (APCs) via the major histocompatibility complex $(MHC)$.