Natural killer cells and cytotoxic (CD8 ) T-cells are great at killing tumor cells or virus infected cells by creating pores in cells with , and then inserting a cytotoxic chemical called to kill the cell.

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

Select the correct answer.which scenario describes unethical lab behavior? o a. danny stores the chemicals required for his experiment in flasks and beakers.b.anna publishes the results of her experiment on the growth rate of saplings.c.jason repeatedly runs an experiment until he gets the results he desires.d. mia records her observations of an experiment precisely and accurately.

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the