Ihave a question about my schooling. i'm thinking about a career in science however, i'm not sure what classes i would need or how to go about changing my major again. i'm very much interested in stuff such as the human genome project and stem cell research. can i get some guidance?

Environmental differences within ecosystems are generally caused by

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?

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it