What term describes the analytical technique used to identify the amount and type of chemicals present in a sample?
A)chromatography
B)electrophoresis
C)mass spectroscopy
D)ultraviolet light radiation

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

How had the study of mitosis affected scientists knowledge of cancer

Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.