What is the charge of the nucleus in an atom of oxygen-17? (1) 0 (3) +8
(2) –2 (4) +17

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part

How does the viscosity of magma change as magma cools?

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o