Which word pair correctly matches a phospholipid part with its solubility? a. fatty acid: hydrophilic b. phosphate: hydrophilic c. steroid: hydrophobic d. triglyceride: hydrophobic

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

At element makes up all organic compounds?