Methane is the main anthropogenic greenhouse gas produced worldwide. produced anywhere organic matter decays without oxygen. accumulating three times as fast as CO2 in the atmosphere. declining in developing countries since many of its uses have been banned. produced from the burning of organic material and soil microbial activity

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

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?

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.