How does fossil evidence determine the relationship of whale ancestors and their descendants

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

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?

Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?