Many still argue that viruses are living as they can reproduce. Which of these is the best argument against viral reproduction?
A) a single virus can reproduce by itself
B) there must be two different viruses in order to reproduce sexually
C) it is actually asexual reproduction which proves viruses are living
D) it is not true reproduction as a host cell is required to build new viruses

D. it is not true reproduction as a host cell is required to build new viruses

Explanation:

Viruses reproduce by using host cells to convert them into that virus. That is how they spread throughout your body.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.