Ecologists have found that dense populations of organisms have lower birth rates, higher death rates, and slower growth rates than less dense populations. Which best explains these findings? A
interactions between predator and prey
B
natural environmental disturbances
C
unusual weather changes
D
stressors from competition for resources

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?

Whay is the following best defines climate

The science for classifying and naming organisms is known as