Na espécie humana ocorrem quatro grupos sanguíneos do sistema ABO – A, B, AB e 0 (zero) –, relacionados à presença de certos antígenos na membrana dos glóbulos vermelhos. A genealogia adiante revela grupos sanguíneos do sistema ABO.

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?

Acell goes through cellular respiration and produces atp which it then uses to move a molecule across the cell membrane. how does the energy in the original glucose molecule change during this process? (2 points)

Several billion years ago which gas was the least prevailant in the atmosphere