Which statements describe why organisms are classified? check all that apply.
classification shows how closely related organisms are to each other.
classification makes it easier to identify the color of an organism.
classification allows for better identification of new organisms.
classification shows the offspring of two parents.
classification makes organisms easier to study.

answers:
classification shows how closely related organisms are to each other.
classification allows for better identification of new organisms.
classification makes organisms easier to study.

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?