Asthma is a lung disease that makes breathing difficult for millions of Americans. There is no cure for asthma, but the good news is it can be managed and treated so you can live a normal, healthy life. The American Lung Association is committed to supporting those affected by asthma. We offer a variety of resources and information about the disease.
The functions of life are movement, respiration, sensitivity, growth, reproduction, excretion and nutrition. Mrs Gren in school biology. The question does not ask that these units be able to carry out the functions of life independently, so the answer would be viruses in this case.
Each perspective provides information about how or why a living system functions: At the chemical level, atoms, molecules (combinations of atoms), and the chemical bonds between atoms provide the framework upon which all living activity is based. The cell is the smallest unit of life. Organelles within the cell are specialized bodies performing specific cellular functions. Cells themselves may be specialized. Thus, there are nerve cells, bone cells, and muscle cells.