Answer:
Control group
Explanation:
A control group is<em> a group of individuals in an experiment where the independent variable being tested (the exposition to cigarette smoke in this case) can't influence the results.</em> This control group will be then compared to the experimental group (exposed to the smoke) to see the effect of the variable evaluated.
I hope you find this information usefula nd interesting! Good luck!
<span>The answer is organelles a specialized part of a cell having some specific function. Organelles is a cell organ specialized part of a cell having some specific function; a cell organ. Also it is a structure or part that is enclosed within its own membrane inside a cell and has a particular function.</span>
<span>Cell culture can be used to produce complex proteins.</span>
C. NH3 - organic nitrogen
The correct answer is buildup of toxins.
One of the essential action of the liver is to process various kinds of toxins and to eliminate it out of the system of the organism. Although it is known as a toxin processor, it is not resistant to the toxins itself. As the liver is the main site for drug decontamination and stimulation, thus, the improper functioning of the liver may lead to the accumulation of toxins.
