A. is for your answer help this helps
I could help if I knew what you needed help with
Science encompasses the systematic study of the structure and behavior of the physical and natural world through observation and experiment, and technology is the application of scientific knowledge for practical purposes.
Hope this helped!
<span>size, small
Gel electorophoresis moves DNA through a matrix that contains molecules which prevent large ones from moving but the smaller ones are able to pass through. This allows molecules to be separated by size.</span>
Answer:
By monitoring changes in the population of a specific indicator species, scientists may draw conclusions about changes in a specific pollutant's levels. In addition, this method of pollution measurement demonstrates the impact of pollution on vulnerable species.
Explanation:
