An idea map is a group chart that delineates how conceptual thoughts are connected. This sort of graphical perception device regularly utilizes circles or boxes to speak to ideas and associating lines to outline. The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown".
Delta is my best guess, hope this helps
Vesicles and vacuoles are to store and transport materials in a cell
That's true because the basic functions of a multi-cellular plant occur in the cell and like any other cell, unicellular alga are also cells thus basic functions such as respiration, excretion, growth occur in both multicellular organisms as well as unicellular organisms
The answer youre looking for is A