T-lymphocytes mature and differentiate in the thymus. Cytotoxic T-lymphocytes secrete antibodies. Cytotoxic T-lymphocytes in direct contact with an infected cell in order to kill it. Cytotoxic T-lymphocytes secrete , which cause a hole in the target cell's plasma membrane.

T-lymphocytes mature and differentiate in the thymus. Cytotoxic T-lymphocytes _do not_ secrete antibodies. Cytotoxic T-lymphocytes __come__ in direct contact with an infected cell in order to kill it. Cytotoxic T-lymphocytes secrete __perforins_ , which cause a hole in the target cell's plasma membrane

Explanation:

T lymphocytes are the type of immune cells that develop from stem cells in bone marrow and mature and differentiate in thymus.T cells may be either T helper cell (CD8+) or T cytotoxic cells (CD4+).Antibodies are secreted by plasma cells. T cytotoxic cells come in direct contact with infected cell to kill it by secreting the perforins specifically virus infected cells.

Ithink it’s around 500 million or something. kinda scary honestly but that’s just my opinion.

Where is the rest of the question