4. What do complement proteins do? O They heal tissue.
They transport hormones.
O They cause fever.
O They signal phagocytes.

Dean has been collecting data on the health risk related to eating too much fast food. which of these would not be a valid conclusion that dean could develop? a) the food in fast food restaurants tastes really good. b) people who eat fast food three times a week are more likely to be obese. c) the chemicals found in the "special sauce" can be linked to acid indigestion. d) eating at fast food restaurants twice a week may lead to increased chance of heart attack.

Which is the graph of the piecewise function f(x)? f(x) = image for option 1 image for option 2 image for option 3 image for option 4

All ova contain sex chromosomes corresponding to: x y xx xy