Test: Click Reset. Click Advance year a couple times. Add as many bears to the forest as possible. Then go forward a couple more years. Select the DATA tab. Which populations were hurt by adding bears?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)