Which one of the following is the best definition of symbiosis?
Apredation of one species on another
Bdormant period of certain organisms during the winter
Cone kind of animal helping another
Dtwo species living in a long-term interrelationship
Apredation of one species on another
Bdormant period of certain organisms during the winter
Cone kind of animal helping another
Dtwo species living in a long-term interrelationship