Scott is experiencing gallstones. the gallstones have caused cholecystitis (inflammation of his gallbladder). scott’s condition affects which body system?
a) digestive
b) genitourinary
c) endocrine
d) hematologic

Nina has the flu and a high fever. her immune system is exhibiting the line of defense. this defense is part of immunity.

By 2 weeks after fertilization the morula has implanted into the uterine lining and transforms into a(n) . this time is when the , or the organ that will provide nourishment to the fetus by exchanging nutrients and waste products, begins to develop.

How do people attempt to explain the behaviors of others?