1. The army is an extremely complex organism . ������һ�����临�ӵ���֯��
2. Soil is an organism. It is alive. It breathes. �������л��塣���ǻ��ŵġ����������
3. Oxygen use produces oxygen-free radicals that can destroy an organism. ���������Ļ�����ܹ��ƻ�����������ɻ���
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n.
1. a living thing that has (or can develop) the ability to act or function independently
2. a system considered analogous in structure or function to a living body