Which of the following are not clues that a chemical reaction has taken place?
a. steam
b. formation of a gas
c. change in color
d. constant temperature

What feature of cell theory is best demonstrated in the image

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.

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.