Which of the following is a man-made aquatic habitat?
a. lake
b. reservoir
c. stream
d. pond

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

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.

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america