D). Carcinogens are chemical factors in an organism's environment that can cause spontaneous mutation.
Which one all of the or what
The effect of chemical pollution on insects living in a pond i think
Answer:
An experimental control is used in scientific experiments to minimize the effect of variables which are not the interest of the study. The control can be an object, population, or any other variable which a scientist would like to “control.”.
Explanation:
