I believe the correct response would be A. Elements arranged by increasing atomic mass, this was not included in Dmitri's periodic table. Since elements are arranged according to atomic number, the heavier elements are in fact placed in the rows closer to the bottom of the table.
I think the correct answer among the choices listed above is the first option. In an ecosystem without primary consumers, t<span>he populations of producers would increase. This is because nothing will eat the the producers or the plants. The plants will only grow and increase.</span>
Metagenomics is the study of genetic material recovered directly from environmental sample. Its field has been responsible for substantial advances in microbial ecology, evolution, and diversity over the past 5 to 10 years and many research laboratories are actively engaged in it now. Using metagenomics, the distinctions between bacterial species are based upon the comparison of DNA nucleotide sequences of different bacterial species.
The correct answer is C. I hope this helps.