For years, go was considered the last redoubt against the march of computers. machines might win at chess, draughts, othello, three-dimensional noughts and crosses, monopoly, bridge and poker. go, though, is different. the game required intuition, strategies in and character reading, along with vast numbers of moves and permutations. according to legend, it was invented by a chinese emperor to teach his subjects to balance and patience: qualities unique to human intelligence.

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?

Which direction does the energy flow in this energy pyramid ?

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.