Cytotoxic t cells can attack target cells with which of these chemical weapons?
a) secrete strong acid b) secrete organic solvent c) secrete free radicals d) secrete a cytokine that triggers apoptosis e) secrete mutant proteins

D) secrete a cytokine that triggers apoptosis

Explanation:

Cytotoxic T cells also known as killer cells are lymphocytes that can kill  foreign cells (also cancer cells, damaged and infected cells). They express specific type of receptors called T-cell receptors (TCRs) which recognize antigen of foreign cells. Cytotoxic T cells release cytotoxins such as perforin and granzymes and their role is to trigger the signal cascade in the target cell that will lead to apopotsis.

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

i think the answer would be d