What color is the sky...

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

How does human environment effect the biosphere

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.