Abdominal muscles or acids weakness.
Anxiety is fear of mind function or psychological problem
Answer:
sorry if i get this wrong d. Monitoring
The correct answer is C, oxygen. Oxygen was once harmful and used to cause harm to the DNA in primitive organisms.
Later on, the bacteria developed enzymes that prevented their DNA from damaging action of oxygen. Afterward, they evolved to use it for cellular respiration.
C the speed of the electric fan
Because it effects offspring whilst body mutations are destroyed by the immune system