Which type of bacterium is likely to live at the bottom of a lake, where there is no oxygen?

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

Brian made this table to organize his notes on changes of state change of state energy change melting gain freezing lose deposition gain condensation lose

Brendan made a diagram to compare and contrast the benefits of two types of social behavior. which description belongs in the area marked "z"? reproductionprotectionforaginghydro dynamic efficiency