Cytotoxic t cells cytotoxic t cells secrete antibodies that attack and kill other cells function mainly to stimulate the proliferation of other t cell populations self-destruct once the antigen has been neutralized are the only t cells that can directly attack and kill other cells

When should a bar graph be used? a. when there is no independent variable. b. when the independent variable is continuous and does not show a relationship to the dependent variable. c. when the independent variable is continuous and shows a causal link to the dependent variable. d. when the independent variable is composed of categories and does not show a relationship.

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing

How does the human body lever work?