Which three statements are true about the energy flow in an ecosystem?

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

Adding more tributaries to a local river basin can have what effect?

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?