. Which of the following statements best defines the ecosystem?

(1) A system that classifies organisms

(2) A system which comprises the physical environment and
the organisms that live therein

(3) A system that studies the volume, intensity and velocity
of sound

(4) A system that governs the radiation of energy from the Sun

Answer Posted / guest

( 2 ) A system which comprises the physical environment and
the organisms that live therein

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