Excretory+System+MattMa

__Enrich__
 * The Excretory Sy****s****tem**
 * 1) These results indicate diabetes that could be severe.
 * 2) This means that the person has a kidney disease.
 * 3) This indicates that the person has bacteria in their urine. Another test that checks for the presence of white blood cells also results in bacteria in their urine.
 * 4) These results indicate the person has either a kidney disease, diabetes, or bacteria in their urine.

__Review and Reinforce__
 * 1) Excretion is the act of removing wastes.
 * 2) Ureters are the two tubes that urine flows through from the kidneys while the urethra is the tube through which the urine leaves the body. They are similar because urine flows through both of them. They are different because there are two ureters while there is only one urethra.
 * 3) Urea is a chemical that comes from the breakdown of proteins.
 * 4) Urine is a fluid that contains urea and other wastes.
 * 5) The kidneys act as filters and help to remove urea and other wastes from the blood.
 * 6) kidneys
 * 7) ureters
 * 8) urinary bladder
 * 9) urethra