(04.02 HC)New findings suggest that, due to rising levels of…

(04.02 HC)New findings suggest that, due to rising levels of carbon dioxide in the air and an increase in the acidity of the oceans, most coral reefs that exist today will disintegrate by the end of the century. If carbon dioxide levels continue to rise, what is the most likely effect on marine organisms that rely on these reefs for food and shelter?

(05.04 MC)Until recently, the Archaea were classified with B…

(05.04 MC)Until recently, the Archaea were classified with Bacteria in the Kingdom Monera. They have now been separated into their own domains, yet they do share some similarities with Bacteria. In which of the following ways are the Archaea similar to Bacteria?

(06.02 MC)While snorkeling in the ocean you find large, leaf…

(06.02 MC)While snorkeling in the ocean you find large, leafy organisms that are brownish in color growing in large masses. You are unsure whether they are protists since they look quite plant-like. If they are actually protists, what characteristic will the organism’s cells exhibit?