What about Mars is very different from Earth?

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

In which state was more than 100 billion tons of coal mined in 2005?