Culioll!
certain types of experiments may not be used. for example, in medical research, when a chemical is suspected as a cause of cancer,
researchers do not purposely expose volunteers to the chemical. they study people who have already been exposed, using those who have
not as the control group. this is an example of
a
inference
bias
ethics
theory

New york city has 2,181 inhabitants per square mile. the state of alaska has 1.03 inhabitants per square mile. ecologists would say alaska has a low exponential growth population density birth rate carrying capacity

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

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?