Which of the following is an essential role played by large intestine bacteria?
a. produce gas
b. absorb bilirubin
c. synthesize vitamin k and b-complex vitamins
d. synthesize vitamins c and d

Patricia is told by her physician that her body and brain chemistry have physically adapted to the drug and that she has become dependent on the tranquilizers prescribed for her by another doctor.

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy