Why do cells go to the trouble of making ATP when they already have glucose molecules? a
prokaryotes cannot use glucose at all, so they must make ATP
b
an ATP molecule holds more energy than a glucose molecule
c
glucose holds too much energy; ATP is easier to spend on cell work
d
because eukaryotes are complex, they must complicate all chemical reactions

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?