A substance with pH 6 would be an acid, because it's 1pH to the left of a neutral substance
B). A population changes in response to a change in the environment.
The nucleus is still there.
The control group is the one not given calculators because they are the “as seen in nature” group. The experimental group would be the ones with calculators.
The answer is; B
Actually, viruses are considered nonliving things because they are unable to bear the characteristic of living things (such as respiration, reproduction, growth, excretion, and etcetera) on their own. They only infect host cells to ride on the cell's biochemical machinery to be able to reproduce. Once outside the cells, they are non-living.
