Which type of white blood cells can fight infection by killing body cells that contain viruses or other harmful non-self substances?
A) antigens B) erythrocytes C) B cells D) cytotoxic T cells
D
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An organization that is specifically dedicated to supporting nursing mothers and encouraging breastfeeding is called
A. La Leche League International. B. the World Health Organization. C. Planned Parenthood. D. the Women's Health Initiative.
Which amino acid has been reported to lower blood pressure and reduce homocysteine levels?
a. Arginine b. Cysteine c. Tryptophan d. Phenylalanine e. Methionine
Sucrose is composed of:
A) fructose joined with galactose. B) fructose joined with glucose. C) glucose joined with glucose. D) fructose joined with maltose.
Symptoms of vitamin B-6 deficiency include
A. dermatitis. B. microcytic anemia. C. depression, confusion, and convulsions. D. All of these choices are accurate.