Explain how each person and group played a crucial role in the cleanup of lake washington

The cleaning process of Lake Washington is an excellent example of community or people matter scenario. Lake Washington is in Washington USA and was polluted by sewage dump and other nutrients into the water which greatly harmed it. The people caused a huge pressure on authorities to take an immediate action to save the Lake, as a result the government acted and installed systems where the wastes were not dumped into the lake but were taken to another point where it can be diluted into sea.
This also carry lessons that technical solutions can help save the environment and people do matter in these issues.

i think it is dna, i'm not totally sure but i think it might be.

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.