Which is an example of passive transport across a cell membrane?

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

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups

How can an organ, such as the lungs, work for multiple body systems?