Theres an old man needed your help but you are soo late in your work. What would you do?explain it briefly.

The meselson-stahl experiment demonstrated that dna replication is semiconservative. in the figure, semiconservative replication is illustrated by

Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of this? answer, i will give brainiest to first person to get it right.

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above