During exhalation the diaphragm
a. expands and moves up while the rib cage moves out and down.
b. and the rib cage return to their normal resting positions
c. contracts and moves down while the rib cage moves down and in.
d. contracts and moves down while the rib cage moves out and down.

Select the correct answer from each drop-down menu proteins are

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?

How did the club fungi get its name? a. it is named for the club-shaped seeds it produces. b. it is named for the way individual species grow together in small groups called “clubs.” c. it is named for the club-shaped area where it produces spores. d. it is named for the club-like mechanism it uses to kill its prey.