What evidence have you discovered to compare how light and mechanical waves move away from a source?

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

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