Gypsum and quartz can look very similar. which test can you distinguish them?

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z