It’s B. I did research and found that it’s the application of scientific knowledge for practical purposes.
The answer to the question is c) a dendrochronologist interprets tree rings
what do the flasks contain?
Answer: different organisms have different chromosome numbers
Explanation: eukaryote cells have more than one chromosome
chromosomes are present in most cells all the time (not in erythrocytes), but cannot be visualised except during telophase of mitosis or meisosis
bacterial cells don’t have a nucleus
