Why is the transfer of energy in a food chain only 10 percent efficient?

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

Where does the information about where each transcription factor binds originate?

Which plate boundary causes plates to collide forming mountain ranges, volcanoes, and island arcs? give an example of this type of plate boundary. 2. at which plate boundary do rifts and mid-oceans ridges form? give an example of this type of plate boundary. 3. at which plate boundary do plates slide past each other while moving in opposite directions? give an example of this type of boundary.