The rapid growth of the human population during the last two centuries is indirectly responsible for which environmental concern, that in turn, will lead to future species extinction? a) ozone depletion b) habitat fragmentation c) decreased biodiversity d) fossil fuel consumption

The rate at which molecules water and oxygen can enter a cell is determined by the-

Aphids are tiny insects that feed on plants. ladybugs are to plants because they eat aphids. which type of organism are aphids in this scenario? co decomposers predators prey producers

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?