What is released or observed whenever chemical bonds form or are broken

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

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?

Hybrid instruments that play sounds that are part sampled and part synthesized are known as: