Which term is defined as the interrelationship between living beings and the environment? climate system

atmospheric system

ecosystem

life support system

Don't depend on this but logically i think c

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.