Which are mixtures? check all that apply.

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

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?