The permafrost <span>t is the limiting factor for the growth of trees in the tundra.</span>
Explanation/Answer :Blood moves continuously through the body, delivering oxygen and other materials to cells and removing carbon dioxide and other wastes from cells.
It means that the organism does not require air (oxygen) to live
They all grow, need air, have cells, have DNA, and need water and food
Answer:
Explanation:
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.
