The two most important properties of a telescope are: Light gathering ability<span> - The better a telescope can gather light, the better you will be able to see far away stars and faint objects in the night sky. Magnification - The magnification of a telescope describes how much larger the telescope can make objects appear.</span>
Energy can not be created nor destroyed, leaving the only possible answer to be "b," when energy changes from one form to another.
Anthropology and sociology
The cell in the middle differs from its surrounding cells by having a double cell membrane hence the cells do not have the exact same structure and most likely do not come from the same cell. For cells to produce food molecules, I am not too sure but I feel that the question is referring to plant cells that are able to photosynthesize. Plant cells have a cell wall and a cell membrane hence is unlikely to be represented by most of the cells in this diagram. Thus by elimination, the answer could be having the same function