Why was darwins work on the galopagose islands so ground breaking

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.

Moving down the ramp from 6 meters to

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.