Energy flow through an ecosystem is one-way because

According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously

What are some natural processes that represent physical and chemical changes?

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water