Which of the following is an example of how electrical energy can be generated?

What are the four basic classes of organic molecules how do they differ structurally and functionally

What is the difference between an igneous, sedimentary and metamorphic rock

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