Hormones are distributed throughout the body
by
a. the urinary system.
b. the lymphatic system.
c. the nervous system.
d. the circulatory system.
e. more than one of these systems
D
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Error bars on a graph indicate ____
a. places where the data is likely wrong b. places where the researcher is unsure of her results c. variation in results that cannot be accounted for. d. variation in a set of data around the average e. poor experimental technique on the part of the researcher
Most ulcers are caused by____
a. eating spicy food b. overuse of aspirin c. bacterial infection d. stress e. poor diet
Reservoirs include ________.
A. animals B. soil C. water D. humans E. All of the choices are correct.
When homologous chromosomes or chromatids fail to separate properly in meiosis, this is called ________.
Fill in the blank(s) with the appropriate word(s).