corey and sally are studying energy transformation. they follow these steps. corey rubs a balloon on the hair of his head corey moves the same balloon toward the top of sally's head dally's hair stands straight up identify the type of energy that is added to the system and transformed into potential energy in an electric field. explain how this model demonstrates that forces can affect objects without touching them.

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.