Which of these is not an organ in the digestive system?
A. heart
B. stomach
C. intestine

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

According to the tide table below what time of day will the highest tide occur?

What is the effect of returning nuclear reactor cooling water back into bodies of water?