How does the "barrier method" give protection from STD's? -It helps the semen travel faster
-It removes vaginal fluid from the body
-it prevents semen from entering another's body
-it causes the blood to flow slower

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

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?

What is the correct answer for the process of water eroding soil? rills, sheet erosion, gullies sheet erosion, rill, gullies gullies, rills, sheet erosion sheet erosion, gullies, rills