In the heart, one ventricle pushes blood with oxygen to the cells of the body. Where does the other ventricle push the blood without oxygen? to the cells to the tissues to the lungs to the heart

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

As a small change in a person's dna can cause a genetic disorder

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?